src/Compilers/CSharp/Test/Emit/CodeGen/CodeGenDynamicTests.cs - main - githubmirror/roslyn

src/Compilers/CSharp/Test/Emit/CodeGen/CodeGenDynamicTests.cs
16 421 строка942 KB
Fred Silberberg
Simplify sequence point display (#81104)
10 ноя 2025, 20:11
10 ноя 2025, 20:110544ad5
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

#nullable disable

using System;
using System.Linq;
using System.Reflection.Metadata.Ecma335;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using Microsoft.CodeAnalysis.CSharp.Symbols;
using Microsoft.CodeAnalysis.CSharp.Symbols.Metadata.PE;
using Microsoft.CodeAnalysis.CSharp.Test.Utilities;
using Microsoft.CodeAnalysis.Test.Utilities;
using Roslyn.Test.Utilities;
using Xunit;

namespace Microsoft.CodeAnalysis.CSharp.UnitTests.CodeGen
{
    public class CodeGen_DynamicTests : CSharpTestBase
    {
        #region Helpers

        private CompilationVerifier CompileAndVerifyIL(
            string source,
            string methodName,
            string expectedOptimizedIL = null,
            string expectedUnoptimizedIL = null,
            MetadataReference[] references = null,
            bool allowUnsafe = false,
            [CallerFilePath] string callerPath = null,
            [CallerLineNumber] int callerLine = 0,
            CSharpParseOptions parseOptions = null,
            Verification verify = default)
        {
            references = references ?? new[] { SystemCoreRef, CSharpRef };

            // verify that we emit correct optimized and unoptimized IL:
            var unoptimizedCompilation = CreateCompilationWithMscorlib461(source, references, parseOptions: parseOptions, options: TestOptions.DebugDll.WithMetadataImportOptions(MetadataImportOptions.All).WithAllowUnsafe(allowUnsafe));
            var optimizedCompilation = CreateCompilationWithMscorlib461(source, references, parseOptions: parseOptions, options: TestOptions.ReleaseDll.WithMetadataImportOptions(MetadataImportOptions.All).WithAllowUnsafe(allowUnsafe));

            var unoptimizedVerifier = CompileAndVerify(unoptimizedCompilation, verify: verify);
            var optimizedVerifier = CompileAndVerify(optimizedCompilation, verify: verify);

            // check what IL we emit exactly:
            if (expectedUnoptimizedIL != null)
            {
                unoptimizedVerifier.VerifyIL(methodName, expectedUnoptimizedIL, realIL: true, sequencePointDisplay: SequencePointDisplayMode.Minimal, callerPath: callerPath, callerLine: callerLine);
            }

            if (expectedOptimizedIL != null)
            {
                optimizedVerifier.VerifyIL(methodName, expectedOptimizedIL, realIL: true, callerPath: callerPath, callerLine: callerLine);
            }

            // return null if ambiguous
            return (expectedUnoptimizedIL != null) ^ (expectedOptimizedIL != null) ? (unoptimizedVerifier ?? optimizedVerifier) : null;
        }

        private readonly CSharpParseOptions _localFunctionParseOptions = TestOptions.Regular;

        #endregion

        #region C# Runtime and System.Core sources

        private const string CSharpBinderTemplate = @"
using System;
using System.Collections.Generic;
using System.Linq.Expressions;
using System.Runtime.CompilerServices;

namespace Microsoft.CSharp.RuntimeBinder
{{
{0}
}}
";

        private const string CSharpBinderFlagsSource = @"
public enum CSharpBinderFlags
{
    None = 0,
    CheckedContext = 1,
    InvokeSimpleName = 2,
    InvokeSpecialName = 4,
    BinaryOperationLogical = 8,
    ConvertExplicit = 16,
    ConvertArrayIndex = 32,
    ResultIndexed = 64,
    ValueFromCompoundAssignment = 128,
    ResultDiscarded = 256
}
";

        private const string CSharpArgumentInfoFlagsSource = @"
public enum CSharpArgumentInfoFlags
{
    None = 0,
    UseCompileTimeType = 1,
    Constant = 2,
    NamedArgument = 4,
    IsRef = 8,
    IsOut = 16,
    IsStaticType = 32
}
";
        private const string CSharpArgumentInfoSource = @"
public sealed class CSharpArgumentInfo
{
    public static CSharpArgumentInfo Create(CSharpArgumentInfoFlags flags, string name) { return null; }
}
";
        private readonly string[] _binderFactoriesSource = new[]
        {
            "CallSiteBinder BinaryOperation(CSharpBinderFlags flags, ExpressionType operation, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder Convert(CSharpBinderFlags flags, Type type, Type context)",
            "CallSiteBinder GetIndex(CSharpBinderFlags flags, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder GetMember(CSharpBinderFlags flags, string name, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder Invoke(CSharpBinderFlags flags, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder InvokeMember(CSharpBinderFlags flags, string name, IEnumerable<Type> typeArguments, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder InvokeConstructor(CSharpBinderFlags flags, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder IsEvent(CSharpBinderFlags flags, string name, Type context)",
            "CallSiteBinder SetIndex(CSharpBinderFlags flags, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder SetMember(CSharpBinderFlags flags, string name, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
            "CallSiteBinder UnaryOperation(CSharpBinderFlags flags, ExpressionType operation, Type context, IEnumerable<CSharpArgumentInfo> argumentInfo)",
        };

        private MetadataReference MakeCSharpRuntime(string excludeBinder = null, bool excludeBinderFlags = false, bool excludeArgumentInfoFlags = false, MetadataReference systemCore = null)
        {
            var sb = new StringBuilder();

            sb.AppendLine(excludeBinderFlags ? "public enum CSharpBinderFlags { A }" : CSharpBinderFlagsSource);
            sb.AppendLine(excludeArgumentInfoFlags ? "public enum CSharpArgumentInfoFlags { A }" : CSharpArgumentInfoFlagsSource);
            sb.AppendLine(CSharpArgumentInfoSource);

            foreach (var src in excludeBinder == null ? _binderFactoriesSource : _binderFactoriesSource.Where(src => src.IndexOf(excludeBinder, StringComparison.Ordinal) == -1))
            {
                sb.AppendFormat("public partial class Binder {{ public static {0} {{ return null; }} }}", src);
                sb.AppendLine();
            }

            string source = string.Format(CSharpBinderTemplate, sb.ToString());
            return CreateCompilationWithMscorlib40(source, new[] { systemCore ?? SystemCoreRef }, assemblyName: GetUniqueName()).EmitToImageReference();
        }

        private const string ExpressionTypeSource = @"
namespace System.Linq.Expressions
{
    public enum ExpressionType
    {
        Add, AddChecked, And, AndAlso, ArrayLength, ArrayIndex, Call, Coalesce, Conditional, Constant, Convert, ConvertChecked, 
        Divide, Equal, ExclusiveOr, GreaterThan, GreaterThanOrEqual, Invoke, Lambda, LeftShift, LessThan, LessThanOrEqual, ListInit,
        MemberAccess, MemberInit, Modulo, Multiply, MultiplyChecked, Negate, UnaryPlus, NegateChecked, New, NewArrayInit, NewArrayBounds, 
        Not, NotEqual, Or, OrElse, Parameter, Power, Quote, RightShift, Subtract, SubtractChecked, TypeAs, TypeIs, Assign, Block, DebugInfo,
        Decrement, Dynamic, Default, Extension, Goto, Increment, Index, Label, RuntimeVariables, Loop, Switch, Throw, Try, Unbox, AddAssign, 
        AndAssign, DivideAssign, ExclusiveOrAssign, LeftShiftAssign, ModuloAssign, MultiplyAssign, OrAssign, PowerAssign, RightShiftAssign, 
        SubtractAssign, AddAssignChecked, MultiplyAssignChecked, SubtractAssignChecked, PreIncrementAssign, PreDecrementAssign, PostIncrementAssign, 
        PostDecrementAssign, TypeEqual, OnesComplement, IsTrue, IsFalse
    }
}
";
        private const string DynamicAttributeSource = @"
namespace System.Runtime.CompilerServices
{
    public sealed class DynamicAttribute : Attribute
    {
        public DynamicAttribute() { }
        public DynamicAttribute(bool[] transformFlags) { }
    }
}";

        private const string CallSiteSource = @"
namespace System.Runtime.CompilerServices
{
    public class CallSite { }

    public class CallSite<T> : CallSite where T : class
    {
        public T Target;

        public static CallSite<T> Create(CallSiteBinder binder)
        {
            return null;
        }
    }

    public abstract class CallSiteBinder { }
}";

        private const string SystemCoreSource = ExpressionTypeSource + DynamicAttributeSource + CallSiteSource;

        #endregion

        #region Missing Well-Known Members

        [Fact]
        public void Missing_CSharpArgumentInfo()
        {
            string source = @"
class C
{
    public event System.Action e;
    public C(dynamic d) { }

    void F(dynamic d) 
    { 
        var a1 = d * d;
        var a2 = (int)d;
        var a3 = d[d];
        var a4 = d.M;
        var a5 = d();
        var a6 = d.M();
        var a7 = new C(d);
        e += d;
        var a9 = d[d] = d;
        var a10 = d.M = d;
        var a11 = -d;
        e();
    }
}
";
            CreateCompilationWithMscorlib40AndSystemCore(source).VerifyEmitDiagnostics(
    // (9,18): error CS0656: Missing compiler required member 'Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create'
    //         var a1 = d * d;
    Diagnostic(ErrorCode.ERR_MissingPredefinedMember, "d").WithArguments("Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo", "Create").WithLocation(9, 18)
            );
        }

        [Fact]
        public void Missing_Binder()
        {
            var csrtRef = MakeCSharpRuntime(excludeBinder: "InvokeConstructor");

            string source = @"
class C
{
    public C(int a) { }
    public C(long a) { }
    void F(dynamic d) 
    {
        new C(d.M(d.M = d[-d], d[(int)d()] = d * d.M));
    }
}
";
            CreateCompilationWithMscorlib40(source, new[] { SystemCoreRef, csrtRef }).VerifyEmitDiagnostics(
                // (8,9): error CS0656: Missing compiler required member 'Microsoft.CSharp.RuntimeBinder.Binder.InvokeConstructor'
                //         new C(d.M(d.M = d[-d], d[(int)d()] = d * d.M));
                Diagnostic(ErrorCode.ERR_MissingPredefinedMember, "new C(d.M(d.M = d[-d], d[(int)d()] = d * d.M))").WithArguments("Microsoft.CSharp.RuntimeBinder.Binder", "InvokeConstructor")
                );
        }

        [Fact]
        public void Missing_Flags()
        {
            var csrtRef = MakeCSharpRuntime(excludeBinderFlags: true, excludeArgumentInfoFlags: true);

            string source = @"
class C
{
    public static void G(int a) { }

    void F(dynamic d) 
    {
        G(d); // CSharpBinderFlags.InvokeSimpleName, CSharpBinderFlags.ResultDiscarded
              // CSharpArgumentInfoFlags.None, CSharpArgumentInfoFlags.UseCompileTimeType
    }
}
";
            // the compiler ignores the enum values, uses hardcoded values:
            CreateCompilationWithMscorlib40(source, new[] { SystemCoreRef, csrtRef }).VerifyEmitDiagnostics();
        }

        [Fact]
        public void Missing_Func()
        {
            var systemCoreRef = CreateCompilationWithMscorlib40(SystemCoreSource, assemblyName: GetUniqueName()).EmitToImageReference();
            var csrtRef = MakeCSharpRuntime(systemCore: systemCoreRef);

            string source = @"
class C
{
    dynamic F(dynamic d) 
    {
        return d(1,2,3,4,5,6,7,8,9,10); // Func`13
    }
}
";
            // the delegate is generated, no error is reported
            CreateCompilationWithMscorlib40(source, new[] { systemCoreRef, csrtRef });
        }

        [Fact]
        public void InvalidFunc_Arity()
        {
            var systemCoreRef = CreateCompilationWithMscorlib40(SystemCoreSource, assemblyName: GetUniqueName()).EmitToImageReference();
            var csrtRef = MakeCSharpRuntime(systemCore: systemCoreRef);
            var funcRef = MetadataReference.CreateFromImage(TestResources.MetadataTests.Invalid.InvalidFuncDelegateName.AsImmutableOrNull());

            string source = @"
class C
{
    dynamic F(dynamic d) 
    {
        return d(1,2,3,4,5,6,7,8,9,10); // Func`13
    }
}
";
            // the delegate is generated, no error is reported
            var c = CompileAndVerifyWithMscorlib40(source, new[] { systemCoreRef, csrtRef, funcRef });
            Assert.Equal(1, ((CSharpCompilation)c.Compilation).GlobalNamespace.GetMember<NamespaceSymbol>("System").GetMember<NamedTypeSymbol>("Func`13").Arity);
        }

        [Fact, WorkItem(530436, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/530436")]
        public void InvalidFunc_Constraints()
        {
            var systemCoreRef = CreateCompilationWithMscorlib40(SystemCoreSource, assemblyName: GetUniqueName()).EmitToImageReference();
            var csrtRef = MakeCSharpRuntime(systemCore: systemCoreRef);

            string source = @"
namespace System
{
    public delegate TResult Func<in T1, in T2, in T3, in T4, in T5, in T6, in T7, in T8, in T9, in T10, in T11, in T12, out TResult>(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7, T8 arg8, T9 arg9, T10 arg10, T11 arg11, T12 arg12)
        where T4 : class;
}

class C
{
    dynamic F(dynamic d) 
    {
        return d(1,2,3,4,5,6,7,8,9,10); // Func`13
    }
}
";
            // Desired: the delegate is generated, no error is reported.
            // Actual: use the malformed Func`13 time and failed to PEVerify.  Not presently worthwhile to fix.
            CompileAndVerifyWithMscorlib40(source, new[] { systemCoreRef, csrtRef }, verify: Verification.Fails).VerifyIL("C.F", @"
{
  // Code size      189 (0xbd)
  .maxstack  13
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>> C.<>o__0.<>p__0""
  IL_0005:  brtrue     IL_009b
  IL_000a:  ldc.i4.0
  IL_000b:  ldtoken    ""C""
  IL_0010:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0015:  ldc.i4.s   11
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  dup
  IL_0027:  ldc.i4.1
  IL_0028:  ldc.i4.3
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.2
  IL_0032:  ldc.i4.3
  IL_0033:  ldnull
  IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0039:  stelem.ref
  IL_003a:  dup
  IL_003b:  ldc.i4.3
  IL_003c:  ldc.i4.3
  IL_003d:  ldnull
  IL_003e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0043:  stelem.ref
  IL_0044:  dup
  IL_0045:  ldc.i4.4
  IL_0046:  ldc.i4.3
  IL_0047:  ldnull
  IL_0048:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004d:  stelem.ref
  IL_004e:  dup
  IL_004f:  ldc.i4.5
  IL_0050:  ldc.i4.3
  IL_0051:  ldnull
  IL_0052:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0057:  stelem.ref
  IL_0058:  dup
  IL_0059:  ldc.i4.6
  IL_005a:  ldc.i4.3
  IL_005b:  ldnull
  IL_005c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0061:  stelem.ref
  IL_0062:  dup
  IL_0063:  ldc.i4.7
  IL_0064:  ldc.i4.3
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  dup
  IL_006d:  ldc.i4.8
  IL_006e:  ldc.i4.3
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  dup
  IL_0077:  ldc.i4.s   9
  IL_0079:  ldc.i4.3
  IL_007a:  ldnull
  IL_007b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0080:  stelem.ref
  IL_0081:  dup
  IL_0082:  ldc.i4.s   10
  IL_0084:  ldc.i4.3
  IL_0085:  ldnull
  IL_0086:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008b:  stelem.ref
  IL_008c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0091:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0096:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>> C.<>o__0.<>p__0""
  IL_009b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>> C.<>o__0.<>p__0""
  IL_00a0:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>>.Target""
  IL_00a5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>> C.<>o__0.<>p__0""
  IL_00aa:  ldarg.1
  IL_00ab:  ldc.i4.1
  IL_00ac:  ldc.i4.2
  IL_00ad:  ldc.i4.3
  IL_00ae:  ldc.i4.4
  IL_00af:  ldc.i4.5
  IL_00b0:  ldc.i4.6
  IL_00b1:  ldc.i4.7
  IL_00b2:  ldc.i4.8
  IL_00b3:  ldc.i4.s   9
  IL_00b5:  ldc.i4.s   10
  IL_00b7:  callvirt   ""dynamic System.Func<System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int, dynamic>.Invoke(System.Runtime.CompilerServices.CallSite, dynamic, int, int, int, int, int, int, int, int, int, int)""
  IL_00bc:  ret
}
");
        }

        [Fact]
        public void Missing_CallSite()
        {
            string systemCoreSource = ExpressionTypeSource + DynamicAttributeSource + @"
namespace System.Runtime.CompilerServices
{
    public class CallSite<T> where T : class
    {
        public T Target;

        public static CallSite<T> Create(CallSiteBinder binder)
        {
            return null;
        }
    }

    public abstract class CallSiteBinder { }
}";

            var systemCoreRef = CreateCompilationWithMscorlib40(systemCoreSource, assemblyName: GetUniqueName()).EmitToImageReference();
            var csrtRef = MakeCSharpRuntime(systemCore: systemCoreRef);

            string source = @"
class C 
{
    dynamic F(dynamic d)
    {
        return d * d;
    }
}
";
            CreateCompilationWithMscorlib40(source, new[] { systemCoreRef, csrtRef }).VerifyEmitDiagnostics(
                // (6,16): error CS0518: Predefined type 'System.Runtime.CompilerServices.CallSite' is not defined or imported
                Diagnostic(ErrorCode.ERR_PredefinedTypeNotFound, "d").WithArguments("System.Runtime.CompilerServices.CallSite"),
                // error CS1969: One or more types required to compile a dynamic expression cannot be found. Are you missing a reference?
                Diagnostic(ErrorCode.ERR_DynamicRequiredTypesMissing));
        }

        [Fact]
        public void Missing_CallSiteOfT()
        {
            string systemCoreSource = ExpressionTypeSource + DynamicAttributeSource + @"
namespace System.Runtime.CompilerServices
{
    public class CallSite { }
    public class CallSiteBinder {}
}";

            var systemCoreRef = CreateCompilationWithMscorlib40(systemCoreSource, assemblyName: GetUniqueName()).EmitToImageReference();
            var csrtRef = MakeCSharpRuntime(systemCore: systemCoreRef);

            string source = @"
class C 
{
    dynamic F(dynamic d)
    {
        return d * d;
    }
}
";
            CreateCompilationWithMscorlib40(source, new[] { systemCoreRef, csrtRef }).VerifyEmitDiagnostics(
    // (6,16): error CS0518: Predefined type 'System.Runtime.CompilerServices.CallSite`1' is not defined or imported
    //         return d * d;
    Diagnostic(ErrorCode.ERR_PredefinedTypeNotFound, "d").WithArguments("System.Runtime.CompilerServices.CallSite`1").WithLocation(6, 16),
    // (6,16): error CS0656: Missing compiler required member 'System.Runtime.CompilerServices.CallSite`1.Create'
    //         return d * d;
    Diagnostic(ErrorCode.ERR_MissingPredefinedMember, "d").WithArguments("System.Runtime.CompilerServices.CallSite`1", "Create").WithLocation(6, 16)
                );
        }

        #endregion

        #region Generated Metadata (call-site containers, delegates)

        /// <summary>
        /// Dev11 doesn't include name of explicit interface implementation method into site container name.
        /// </summary>
        [Fact]
        public void ExplicitInterfaceImplementation()
        {
            string source = @"
public interface I
{
    dynamic M(dynamic d);
}

public class C : I
{
    dynamic I.M(dynamic d)
    {
        return checked(d * d);
    }
}";
            CompileAndVerifyIL(source, "C.I.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.1
  IL_0008:  ldc.i4.s   26
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void CallSiteContainers()
        {
            string source = @"
public class C
{
    public void M1(dynamic d)
    {
        d.m(1,2,3);
    }

    public void M2(dynamic d)
    {
        d.m(1,2,3);
    }
}";
            var verifier = CompileAndVerifyWithCSharp(source, options: TestOptions.ReleaseDll.WithMetadataImportOptions(MetadataImportOptions.All), symbolValidator: peModule =>
            {
                var c = peModule.GlobalNamespace.GetMember<NamedTypeSymbol>("C");
                var containers = c.GetMembers().OfType<NamedTypeSymbol>().ToArray();
                Assert.Equal(2, containers.Length);

                foreach (var container in containers)
                {
                    Assert.Equal(Accessibility.Private, container.DeclaredAccessibility);
                    Assert.True(container.IsStatic);
                    Assert.Equal(SpecialType.System_Object, container.BaseType().SpecialType);
                    AssertEx.SetEqual(new[] { "CompilerGeneratedAttribute" }, GetAttributeNames(container.GetAttributes()));

                    var members = container.GetMembers();
                    Assert.Equal(1, members.Length);
                    var field = (FieldSymbol)members[0];

                    Assert.Equal(Accessibility.Public, field.DeclaredAccessibility);
                    Assert.True(field.IsStatic);
                    Assert.False(field.IsReadOnly);

                    Assert.Equal("System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int>>",
                        field.TypeWithAnnotations.ToDisplayString());

                    Assert.Equal(0, field.GetAttributes().Length);

                    switch (container.Name)
                    {
                        case "<>o__0":
                            Assert.Equal("<>p__0", field.Name);
                            break;

                        case "<>o__1":
                            Assert.Equal("<>p__0", field.Name);
                            break;

                        default:
                            throw TestExceptionUtilities.UnexpectedValue(container.Name);
                    }
                }
            });
        }

        [Fact]
        public void CallSiteContainers_MultipleSitesInMethod_DisplayClass()
        {
            string source = @"
public class C
{
    public void M1(dynamic d)
    {
        d.m(1);
        d.m(1,2);
        var x = new System.Action(() => d.m());
    }
}";
            var verifier = CompileAndVerifyWithCSharp(source, options: TestOptions.ReleaseDll.WithMetadataImportOptions(MetadataImportOptions.All), symbolValidator: peModule =>
            {
                var c = peModule.GlobalNamespace.GetMember<NamedTypeSymbol>("C");
                Assert.Equal(2, c.GetMembers().OfType<NamedTypeSymbol>().Count());

                var container = c.GetMember<NamedTypeSymbol>("<>o__0");

                // all call-site storage fields of the method are added to a single container:
                var memberNames = container.GetMembers().Select(m => m.Name);
                AssertEx.SetEqual(new[] { "<>p__0", "<>p__1", "<>p__2" }, memberNames);

                var displayClass = c.GetMember<NamedTypeSymbol>("<>c__DisplayClass0_0");
                var d = displayClass.GetMember<FieldSymbol>("d");
                var attributes = d.GetAttributes();
                Assert.Equal(1, attributes.Length);
                Assert.Equal("System.Runtime.CompilerServices.DynamicAttribute", attributes[0].AttributeClass.ToDisplayString());
            });
        }

        [Fact]
        public void Iterator()
        {
            string source = @"
using System.Collections.Generic;

public class C
{
    public IEnumerable<dynamic> M1()
    {
        dynamic d = 1;
        yield return 1;
        d = d + 2;
        yield return d;        
    }
}";
            var verifier = CompileAndVerifyWithCSharp(source, options: TestOptions.ReleaseDll.WithMetadataImportOptions(MetadataImportOptions.All), symbolValidator: peModule =>
            {
                var c = peModule.GlobalNamespace.GetMember<NamedTypeSymbol>("C");
                var iteratorClass = c.GetMember<NamedTypeSymbol>("<M1>d__0");

                foreach (var member in iteratorClass.GetMembers())
                {
                    switch (member.Kind)
                    {
                        case SymbolKind.Field:
                            // no field is marked with DynamicAttribute
                            Assert.Equal(0, member.GetAttributes().Length);
                            break;

                        case SymbolKind.Method:
                            var attributes = ((MethodSymbol)member).GetReturnTypeAttributes();
                            switch (member.MetadataName)
                            {
                                case "System.Collections.Generic.IEnumerator<dynamic>.get_Current":
                                case "System.Collections.Generic.IEnumerable<dynamic>.GetEnumerator":
                                    Assert.Equal(1, attributes.Length);
                                    break;
                                default:
                                    Assert.Equal(0, attributes.Length);
                                    break;
                            }
                            break;

                        case SymbolKind.Property:
                            // "Current" properties or return types are not marked with attributes
                            break;

                        default:
                            throw TestExceptionUtilities.UnexpectedValue(member.Kind);
                    }
                }

                var container = c.GetMember<NamedTypeSymbol>("<>o__0");
                Assert.Equal(1, container.GetMembers().Length);
            });
        }

        [Fact]
        [WorkItem(625282, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/625282")]
        public void GenericIterator()
        {
            string source = @"
using System.Collections.Generic;

class C
{
    dynamic d = null;
    
    public IEnumerable<T> Run<T>()
    {
        yield return d;
    }
}
";
            CompileAndVerifyIL(source, "C.<Run>d__1<T>.System.Collections.IEnumerator.MoveNext", @"
{
  // Code size      123 (0x7b)
  .maxstack  4
  .locals init (int V_0,
                C V_1)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""int C.<Run>d__1<T>.<>1__state""
  IL_0006:  stloc.0
  IL_0007:  ldarg.0
  IL_0008:  ldfld      ""C C.<Run>d__1<T>.<>4__this""
  IL_000d:  stloc.1
  IL_000e:  ldloc.0
  IL_000f:  brfalse.s  IL_0017
  IL_0011:  ldloc.0
  IL_0012:  ldc.i4.1
  IL_0013:  beq.s      IL_0072
  IL_0015:  ldc.i4.0
  IL_0016:  ret
  IL_0017:  ldarg.0
  IL_0018:  ldc.i4.m1
  IL_0019:  stfld      ""int C.<Run>d__1<T>.<>1__state""
  IL_001e:  ldarg.0
  IL_001f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__1<T>.<>p__0""
  IL_0024:  brtrue.s   IL_004a
  IL_0026:  ldc.i4.0
  IL_0027:  ldtoken    ""T""
  IL_002c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0031:  ldtoken    ""C""
  IL_0036:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0040:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0045:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__1<T>.<>p__0""
  IL_004a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__1<T>.<>p__0""
  IL_004f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, T> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>>.Target""
  IL_0054:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__1<T>.<>p__0""
  IL_0059:  ldloc.1
  IL_005a:  ldfld      ""dynamic C.d""
  IL_005f:  callvirt   ""T System.Func<System.Runtime.CompilerServices.CallSite, object, T>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0064:  stfld      ""T C.<Run>d__1<T>.<>2__current""
  IL_0069:  ldarg.0
  IL_006a:  ldc.i4.1
  IL_006b:  stfld      ""int C.<Run>d__1<T>.<>1__state""
  IL_0070:  ldc.i4.1
  IL_0071:  ret
  IL_0072:  ldarg.0
  IL_0073:  ldc.i4.m1
  IL_0074:  stfld      ""int C.<Run>d__1<T>.<>1__state""
  IL_0079:  ldc.i4.0
  IL_007a:  ret
}
");
        }

        [Fact]
        public void NoDynamicAttributeOnCallSiteStorageField()
        {
            string source = @"
using System.Collections.Generic;

public class C
{
    public dynamic M(dynamic d, List<dynamic> a, Dictionary<dynamic, dynamic[]>[] b)
    {
        return d(a, b);
    }
}";
            var verifier = CompileAndVerifyWithCSharp(source, options: TestOptions.ReleaseDll.WithMetadataImportOptions(MetadataImportOptions.All), symbolValidator: peModule =>
            {
                var container = peModule.GlobalNamespace.GetMember<NamedTypeSymbol>("C").GetMember<NamedTypeSymbol>("<>o__0");
                Assert.Equal(0, container.GetMembers().Single().GetAttributes().Length);
            });
        }

        [Fact]
        public void GeneratedDelegates()
        {
            string source = @"
using System.Collections.Generic;

public class C
{
    public dynamic M(dynamic d)
    {
        return d(ref d);
    }
}";
            var verifier = CompileAndVerifyWithCSharp(source, options: TestOptions.ReleaseDll.WithMetadataImportOptions(MetadataImportOptions.All), symbolValidator: peModule =>
            {
                var d = peModule.GlobalNamespace.GetMember<NamedTypeSymbol>("<>F{00000040}");

                // the type:
                Assert.Equal(Accessibility.Internal, d.DeclaredAccessibility);
                Assert.Equal(4, d.TypeParameters.Length);
                Assert.True(d.IsSealed);
                Assert.Equal(CharSet.Ansi, d.MarshallingCharSet);
                Assert.Equal(SpecialType.System_MulticastDelegate, d.BaseType().SpecialType);
                Assert.Equal(0, d.Interfaces().Length);
                AssertEx.SetEqual(new[] { "CompilerGeneratedAttribute" }, GetAttributeNames(d.GetAttributes()));

                // members:
                var members = d.GetMembers();
                Assert.Equal(2, members.Length);
                foreach (var member in members)
                {
                    Assert.Equal(Accessibility.Public, member.DeclaredAccessibility);

                    switch (member.Name)
                    {
                        case ".ctor":
                            Assert.False(member.IsStatic);
                            Assert.False(member.IsSealed);
                            Assert.False(member.IsVirtual);
                            break;

                        case "Invoke":
                            Assert.False(member.IsStatic);
                            Assert.False(member.IsSealed);
                            Assert.True(member.IsVirtual);
                            break;

                        default:
                            throw TestExceptionUtilities.UnexpectedValue(member.Name);
                    }
                }
            });
        }

        [Fact]
        public void GenericContainer1()
        {
            string source = @"
public class C
{
    public T M<T>(dynamic d)
    {
        return (T)d;
    }
}
";
            CompileAndVerifyIL(source, "C.M<T>", @"
{
  // Code size       66 (0x42)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__0<T>.<>p__0""
  IL_0005:  brtrue.s   IL_002c
  IL_0007:  ldc.i4.s   16
  IL_0009:  ldtoken    ""T""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0027:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__0<T>.<>p__0""
  IL_002c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__0<T>.<>p__0""
  IL_0031:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, T> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>>.Target""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, T>> C.<>o__0<T>.<>p__0""
  IL_003b:  ldarg.1
  IL_003c:  callvirt   ""T System.Func<System.Runtime.CompilerServices.CallSite, object, T>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0041:  ret
}
");
        }

        [Fact]
        public void GenericContainer2()
        {
            string source = @"
public class E<P, Q, R> {}

public class C<U>
{
    public dynamic M<S,T>(dynamic d)
    {
        E<S, T, U> dict = null;
        return d(ref dict);
    }
}
";
            CompileAndVerifyIL(source, "C<U>.M<S, T>", @"
{
  // Code size       86 (0x56)
  .maxstack  7
  .locals init (E<S, T, U> V_0) //dict
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>> C<U>.<>o__0<S, T>.<>p__0""
  IL_0007:  brtrue.s   IL_003e
  IL_0009:  ldc.i4.0
  IL_000a:  ldtoken    ""C<U>""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.s   9
  IL_0028:  ldnull
  IL_0029:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002e:  stelem.ref
  IL_002f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0034:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>> System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0039:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>> C<U>.<>o__0<S, T>.<>p__0""
  IL_003e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>> C<U>.<>o__0<S, T>.<>p__0""
  IL_0043:  ldfld      ""<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object> System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>>.Target""
  IL_0048:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>> C<U>.<>o__0<S, T>.<>p__0""
  IL_004d:  ldarg.1
  IL_004e:  ldloca.s   V_0
  IL_0050:  callvirt   ""object <>F{00000040}<System.Runtime.CompilerServices.CallSite, object, E<S, T, U>, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, ref E<S, T, U>)""
  IL_0055:  ret
}
");
        }

        [Fact]
        public void GenericContainer3()
        {
            string source = @"
public class C<U>
{
    public dynamic M(dynamic d)
    {
        return d();
    }
}
";
            CompileAndVerifyIL(source, "C<U>.M", @"
{
  // Code size       71 (0x47)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C<U>.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0031
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C<U>""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.1
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0027:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C<U>.<>o__0.<>p__0""
  IL_0031:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C<U>.<>o__0.<>p__0""
  IL_0036:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C<U>.<>o__0.<>p__0""
  IL_0040:  ldarg.1
  IL_0041:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0046:  ret
}
");
        }

        [Fact]
        public void GenericContainer4()
        {
            string source = @"
using System;

class C
{
    public static int F<T>(dynamic d, Type t, T x) where T : struct
    {
        if (d.GetType() == t && ((T)d).Equals(x)) 
        {
            return 1;
        }
        
        return 2;
    }
}
";
            CompileAndVerifyWithCSharp(source);
        }

        [Fact]
        [WorkItem(627091, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/627091")]
        public void GenericContainer_Lambda()
        {
            string source = @"
class C
{
    static void Goo<T>(T a, dynamic b)
    {
        System.Action f = () => Goo(a, b);
    }
}
";
            CompileAndVerifyIL(source, "C.<>c__DisplayClass0_0<T>.<Goo>b__0", @"
{
  // Code size      123 (0x7b)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>> C.<>o__0<T>.<>p__0""
  IL_0005:  brtrue.s   IL_0050
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""Goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.3
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   33
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.1
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  dup
  IL_0038:  ldc.i4.2
  IL_0039:  ldc.i4.0
  IL_003a:  ldnull
  IL_003b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0040:  stelem.ref
  IL_0041:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0046:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>> C.<>o__0<T>.<>p__0""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>> C.<>o__0<T>.<>p__0""
  IL_0055:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>>.Target""
  IL_005a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>> C.<>o__0<T>.<>p__0""
  IL_005f:  ldtoken    ""C""
  IL_0064:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0069:  ldarg.0
  IL_006a:  ldfld      ""T C.<>c__DisplayClass0_0<T>.a""
  IL_006f:  ldarg.0
  IL_0070:  ldfld      ""dynamic C.<>c__DisplayClass0_0<T>.b""
  IL_0075:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, T, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, T, object)""
  IL_007a:  ret
}
");
        }

        [Fact]
        public void DynamicErasure_MetadataConstant()
        {
            string source = @"
public class C 
{
    const dynamic f = null;

    public void M(dynamic arg = null)
    { 
        const dynamic local = null;
    }
}
";
            CompileAndVerifyWithMscorlib40(source, new[] { SystemCoreRef });
        }

        [Fact, WorkItem(16, "http://roslyn.codeplex.com/workitem/16")]
        public void RemoveAtOfKeywordAsDynamicMemberName()
        {
            string source = @"
using System;

class C
{
    // field
    public int @default = 123;

    // prop
    protected string @if
    {
        get; set;
    }

    int @else
    {
        get { return 1; }
    }

    // event
    public event Action @event
    {
        add { }
        remove { }
    }

    // Method
    internal int @while(dynamic @void) { return 456; }

    static void Main()
    {
        dynamic dyn = new C();

        if (dyn.@default == 123)
        {
            dynamic @static = 12;
            dyn.@default = dyn.@while(@static);          
        }

        dyn.@if = dyn.@else.ToString();
        dyn.@event += (Action)( () => { dyn.@if = dyn.@else.ToString(); });
    }
}
";
            CompileAndVerifyIL(source, "C.Main", @"
{
  // Code size     1130 (0x46a)
  .maxstack  13
  .locals init (C.<>c__DisplayClass11_0 V_0, //CS$<>8__locals0
                object V_1, //static
                object V_2,
                bool V_3,
                object V_4,
                System.Action V_5)
  IL_0000:  newobj     ""C.<>c__DisplayClass11_0..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldloc.0
  IL_0007:  newobj     ""C..ctor()""
  IL_000c:  stfld      ""dynamic C.<>c__DisplayClass11_0.dyn""
  IL_0011:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__2""
  IL_0016:  brtrue.s   IL_0044
  IL_0018:  ldc.i4.0
  IL_0019:  ldc.i4.s   83
  IL_001b:  ldtoken    ""C""
  IL_0020:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0025:  ldc.i4.1
  IL_0026:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002b:  dup
  IL_002c:  ldc.i4.0
  IL_002d:  ldc.i4.0
  IL_002e:  ldnull
  IL_002f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0034:  stelem.ref
  IL_0035:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003a:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003f:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__2""
  IL_0044:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__2""
  IL_0049:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_004e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__2""
  IL_0053:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__11.<>p__1""
  IL_0058:  brtrue.s   IL_0090
  IL_005a:  ldc.i4.0
  IL_005b:  ldc.i4.s   13
  IL_005d:  ldtoken    ""C""
  IL_0062:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0067:  ldc.i4.2
  IL_0068:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_006d:  dup
  IL_006e:  ldc.i4.0
  IL_006f:  ldc.i4.0
  IL_0070:  ldnull
  IL_0071:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0076:  stelem.ref
  IL_0077:  dup
  IL_0078:  ldc.i4.1
  IL_0079:  ldc.i4.3
  IL_007a:  ldnull
  IL_007b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0080:  stelem.ref
  IL_0081:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0086:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_008b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__11.<>p__1""
  IL_0090:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__11.<>p__1""
  IL_0095:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_009a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__11.<>p__1""
  IL_009f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__0""
  IL_00a4:  brtrue.s   IL_00d5
  IL_00a6:  ldc.i4.0
  IL_00a7:  ldstr      ""default""
  IL_00ac:  ldtoken    ""C""
  IL_00b1:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00b6:  ldc.i4.1
  IL_00b7:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00bc:  dup
  IL_00bd:  ldc.i4.0
  IL_00be:  ldc.i4.0
  IL_00bf:  ldnull
  IL_00c0:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c5:  stelem.ref
  IL_00c6:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00cb:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d0:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__0""
  IL_00d5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__0""
  IL_00da:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_00df:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__0""
  IL_00e4:  ldloc.0
  IL_00e5:  ldfld      ""dynamic C.<>c__DisplayClass11_0.dyn""
  IL_00ea:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00ef:  ldc.i4.s   123
  IL_00f1:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_00f6:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00fb:  brfalse    IL_01bf
  IL_0100:  ldc.i4.s   12
  IL_0102:  box        ""int""
  IL_0107:  stloc.1
  IL_0108:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__4""
  IL_010d:  brtrue.s   IL_0148
  IL_010f:  ldc.i4.0
  IL_0110:  ldstr      ""default""
  IL_0115:  ldtoken    ""C""
  IL_011a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_011f:  ldc.i4.2
  IL_0120:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0125:  dup
  IL_0126:  ldc.i4.0
  IL_0127:  ldc.i4.0
  IL_0128:  ldnull
  IL_0129:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_012e:  stelem.ref
  IL_012f:  dup
  IL_0130:  ldc.i4.1
  IL_0131:  ldc.i4.0
  IL_0132:  ldnull
  IL_0133:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0138:  stelem.ref
  IL_0139:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_013e:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0143:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__4""
  IL_0148:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__4""
  IL_014d:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0152:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__4""
  IL_0157:  ldloc.0
  IL_0158:  ldfld      ""dynamic C.<>c__DisplayClass11_0.dyn""
  IL_015d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__3""
  IL_0162:  brtrue.s   IL_019e
  IL_0164:  ldc.i4.0
  IL_0165:  ldstr      ""while""
  IL_016a:  ldnull
  IL_016b:  ldtoken    ""C""
  IL_0170:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0175:  ldc.i4.2
  IL_0176:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_017b:  dup
  IL_017c:  ldc.i4.0
  IL_017d:  ldc.i4.0
  IL_017e:  ldnull
  IL_017f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0184:  stelem.ref
  IL_0185:  dup
  IL_0186:  ldc.i4.1
  IL_0187:  ldc.i4.0
  IL_0188:  ldnull
  IL_0189:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_018e:  stelem.ref
  IL_018f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0194:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0199:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__3""
  IL_019e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__3""
  IL_01a3:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_01a8:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__3""
  IL_01ad:  ldloc.0
  IL_01ae:  ldfld      ""dynamic C.<>c__DisplayClass11_0.dyn""
  IL_01b3:  ldloc.1
  IL_01b4:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_01b9:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_01be:  pop
  IL_01bf:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__7""
  IL_01c4:  brtrue.s   IL_01ff
  IL_01c6:  ldc.i4.0
  IL_01c7:  ldstr      ""if""
  IL_01cc:  ldtoken    ""C""
  IL_01d1:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_01d6:  ldc.i4.2
  IL_01d7:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_01dc:  dup
  IL_01dd:  ldc.i4.0
  IL_01de:  ldc.i4.0
  IL_01df:  ldnull
  IL_01e0:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_01e5:  stelem.ref
  IL_01e6:  dup
  IL_01e7:  ldc.i4.1
  IL_01e8:  ldc.i4.0
  IL_01e9:  ldnull
  IL_01ea:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_01ef:  stelem.ref
  IL_01f0:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_01f5:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_01fa:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__7""
  IL_01ff:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__7""
  IL_0204:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0209:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__7""
  IL_020e:  ldloc.0
  IL_020f:  ldfld      ""dynamic C.<>c__DisplayClass11_0.dyn""
  IL_0214:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__6""
  IL_0219:  brtrue.s   IL_024b
  IL_021b:  ldc.i4.0
  IL_021c:  ldstr      ""ToString""
  IL_0221:  ldnull
  IL_0222:  ldtoken    ""C""
  IL_0227:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_022c:  ldc.i4.1
  IL_022d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0232:  dup
  IL_0233:  ldc.i4.0
  IL_0234:  ldc.i4.0
  IL_0235:  ldnull
  IL_0236:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_023b:  stelem.ref
  IL_023c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0241:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0246:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__6""
  IL_024b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__6""
  IL_0250:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0255:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__6""
  IL_025a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__5""
  IL_025f:  brtrue.s   IL_0290
  IL_0261:  ldc.i4.0
  IL_0262:  ldstr      ""else""
  IL_0267:  ldtoken    ""C""
  IL_026c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0271:  ldc.i4.1
  IL_0272:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0277:  dup
  IL_0278:  ldc.i4.0
  IL_0279:  ldc.i4.0
  IL_027a:  ldnull
  IL_027b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0280:  stelem.ref
  IL_0281:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0286:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_028b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__5""
  IL_0290:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__5""
  IL_0295:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_029a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__5""
  IL_029f:  ldloc.0
  IL_02a0:  ldfld      ""dynamic C.<>c__DisplayClass11_0.dyn""
  IL_02a5:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_02aa:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_02af:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_02b4:  pop
  IL_02b5:  ldloc.0
  IL_02b6:  ldfld      ""dynamic C.<>c__DisplayClass11_0.dyn""
  IL_02bb:  stloc.2
  IL_02bc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__9""
  IL_02c1:  brtrue.s   IL_02e2
  IL_02c3:  ldc.i4.0
  IL_02c4:  ldstr      ""event""
  IL_02c9:  ldtoken    ""C""
  IL_02ce:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_02d3:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.IsEvent(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type)""
  IL_02d8:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_02dd:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__9""
  IL_02e2:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__9""
  IL_02e7:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_02ec:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__11.<>p__9""
  IL_02f1:  ldloc.2
  IL_02f2:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_02f7:  stloc.3
  IL_02f8:  ldloc.3
  IL_02f9:  brtrue.s   IL_0348
  IL_02fb:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__8""
  IL_0300:  brtrue.s   IL_0331
  IL_0302:  ldc.i4.0
  IL_0303:  ldstr      ""event""
  IL_0308:  ldtoken    ""C""
  IL_030d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0312:  ldc.i4.1
  IL_0313:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0318:  dup
  IL_0319:  ldc.i4.0
  IL_031a:  ldc.i4.0
  IL_031b:  ldnull
  IL_031c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0321:  stelem.ref
  IL_0322:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0327:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_032c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__8""
  IL_0331:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__8""
  IL_0336:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_033b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__11.<>p__8""
  IL_0340:  ldloc.2
  IL_0341:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0346:  stloc.s    V_4
  IL_0348:  ldloc.0
  IL_0349:  ldftn      ""void C.<>c__DisplayClass11_0.<Main>b__0()""
  IL_034f:  newobj     ""System.Action..ctor(object, System.IntPtr)""
  IL_0354:  stloc.s    V_5
  IL_0356:  ldloc.3
  IL_0357:  brtrue     IL_040c
  IL_035c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__15""
  IL_0361:  brtrue.s   IL_03a0
  IL_0363:  ldc.i4     0x80
  IL_0368:  ldstr      ""event""
  IL_036d:  ldtoken    ""C""
  IL_0372:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0377:  ldc.i4.2
  IL_0378:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_037d:  dup
  IL_037e:  ldc.i4.0
  IL_037f:  ldc.i4.0
  IL_0380:  ldnull
  IL_0381:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0386:  stelem.ref
  IL_0387:  dup
  IL_0388:  ldc.i4.1
  IL_0389:  ldc.i4.0
  IL_038a:  ldnull
  IL_038b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0390:  stelem.ref
  IL_0391:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0396:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_039b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__15""
  IL_03a0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__15""
  IL_03a5:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_03aa:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__11.<>p__15""
  IL_03af:  ldloc.2
  IL_03b0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__14""
  IL_03b5:  brtrue.s   IL_03ed
  IL_03b7:  ldc.i4.0
  IL_03b8:  ldc.i4.s   63
  IL_03ba:  ldtoken    ""C""
  IL_03bf:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_03c4:  ldc.i4.2
  IL_03c5:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_03ca:  dup
  IL_03cb:  ldc.i4.0
  IL_03cc:  ldc.i4.0
  IL_03cd:  ldnull
  IL_03ce:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_03d3:  stelem.ref
  IL_03d4:  dup
  IL_03d5:  ldc.i4.1
  IL_03d6:  ldc.i4.1
  IL_03d7:  ldnull
  IL_03d8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_03dd:  stelem.ref
  IL_03de:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_03e3:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_03e8:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__14""
  IL_03ed:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__14""
  IL_03f2:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>>.Target""
  IL_03f7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__14""
  IL_03fc:  ldloc.s    V_4
  IL_03fe:  ldloc.s    V_5
  IL_0400:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, System.Action)""
  IL_0405:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_040a:  pop
  IL_040b:  ret
  IL_040c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__13""
  IL_0411:  brtrue.s   IL_0451
  IL_0413:  ldc.i4     0x104
  IL_0418:  ldstr      ""add_event""
  IL_041d:  ldnull
  IL_041e:  ldtoken    ""C""
  IL_0423:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0428:  ldc.i4.2
  IL_0429:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_042e:  dup
  IL_042f:  ldc.i4.0
  IL_0430:  ldc.i4.0
  IL_0431:  ldnull
  IL_0432:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0437:  stelem.ref
  IL_0438:  dup
  IL_0439:  ldc.i4.1
  IL_043a:  ldc.i4.1
  IL_043b:  ldnull
  IL_043c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0441:  stelem.ref
  IL_0442:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0447:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_044c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__13""
  IL_0451:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__13""
  IL_0456:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>>.Target""
  IL_045b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>> C.<>o__11.<>p__13""
  IL_0460:  ldloc.2
  IL_0461:  ldloc.s    V_5
  IL_0463:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, System.Action)""
  IL_0468:  pop
  IL_0469:  ret
}
");
        }

        #endregion

        #region Conversions

        [Fact]
        public void LocalFunctionArgumentConversion()
        {
            string src = @"
using System;
public class C
{
    static void Main()
    {
        int capture1 = 0;
        void L1(int x) => Console.Write(x);
        Action<int> L2(int x)
        {
            Console.Write(capture1);
            Console.Write(x);
            void L3(int y)
            {
                Console.Write(y + x);
            }
            return L3;
        }
        dynamic d = 2;
        L1(d);
        dynamic l3 = L2(d);
        l3(d);
    }
}";
            CompileAndVerifyWithCSharp(src,
                expectedOutput: "2024",
                parseOptions: _localFunctionParseOptions).VerifyDiagnostics();
            CompileAndVerifyIL(src, "C.Main",
                parseOptions: _localFunctionParseOptions,
                expectedOptimizedIL: @"
{
  // Code size      242 (0xf2)
  .maxstack  7
  .locals init (C.<>c__DisplayClass0_0 V_0, //CS$<>8__locals0
                object V_1, //d
                object V_2) //l3
  IL_0000:  ldloca.s   V_0
  IL_0002:  ldc.i4.0
  IL_0003:  stfld      ""int C.<>c__DisplayClass0_0.capture1""
  IL_0008:  ldc.i4.2
  IL_0009:  box        ""int""
  IL_000e:  stloc.1
  IL_000f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0014:  brtrue.s   IL_003a
  IL_0016:  ldc.i4.0
  IL_0017:  ldtoken    ""int""
  IL_001c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0021:  ldtoken    ""C""
  IL_0026:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_002b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0030:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0035:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0044:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0049:  ldloc.1
  IL_004a:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_004f:  call       ""void C.<Main>g__L1|0_0(int)""
  IL_0054:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0059:  brtrue.s   IL_007f
  IL_005b:  ldc.i4.0
  IL_005c:  ldtoken    ""int""
  IL_0061:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0066:  ldtoken    ""C""
  IL_006b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0070:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0075:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_007f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0084:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0089:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_008e:  ldloc.1
  IL_008f:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0094:  ldloca.s   V_0
  IL_0096:  call       ""System.Action<int> C.<Main>g__L2|0_1(int, ref C.<>c__DisplayClass0_0)""
  IL_009b:  stloc.2
  IL_009c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__2""
  IL_00a1:  brtrue.s   IL_00db
  IL_00a3:  ldc.i4     0x100
  IL_00a8:  ldtoken    ""C""
  IL_00ad:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00b2:  ldc.i4.2
  IL_00b3:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00b8:  dup
  IL_00b9:  ldc.i4.0
  IL_00ba:  ldc.i4.0
  IL_00bb:  ldnull
  IL_00bc:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c1:  stelem.ref
  IL_00c2:  dup
  IL_00c3:  ldc.i4.1
  IL_00c4:  ldc.i4.0
  IL_00c5:  ldnull
  IL_00c6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00cb:  stelem.ref
  IL_00cc:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00d1:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d6:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__2""
  IL_00db:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__2""
  IL_00e0:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_00e5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__2""
  IL_00ea:  ldloc.2
  IL_00eb:  ldloc.1
  IL_00ec:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00f1:  ret
}");
        }

        [Fact]
        public void Conversion_Assignment()
        {
            string source = @"
public class C
{
    dynamic d = null;

    void M()
    {
        int i = d;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       71 (0x47)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_0005:  brtrue.s   IL_002b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""int""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0021:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0026:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_002b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_0030:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_003a:  ldarg.0
  IL_003b:  ldfld      ""dynamic C.d""
  IL_0040:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0045:  pop
  IL_0046:  ret
}
");
        }

        [Fact]
        public void Conversion_Implicit()
        {
            string source = @"
public class C
{
    public int M(dynamic d)
    {
        return d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       65 (0x41)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_002b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""int""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0021:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0026:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_002b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0030:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003a:  ldarg.1
  IL_003b:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0040:  ret
}
");
        }

        [Fact]
        public void Conversion_Explicit()
        {
            string source = @"
public class C
{
    public int M(dynamic d)
    {
        return (int)d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       66 (0x42)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_002c
  IL_0007:  ldc.i4.s   16
  IL_0009:  ldtoken    ""int""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0027:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_002c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0031:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003b:  ldarg.1
  IL_003c:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0041:  ret
}");
        }

        [Fact]
        public void Conversion_Implicit_Checked()
        {
            string source = @"
public class C
{
    public int M(dynamic d)
    {
        checked { return d; }
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       65 (0x41)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_002b
  IL_0007:  ldc.i4.1
  IL_0008:  ldtoken    ""int""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0021:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0026:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_002b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0030:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003a:  ldarg.1
  IL_003b:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0040:  ret
}");
        }

        [Fact]
        public void Conversion_Explicit_Checked()
        {
            string source = @"
public class C
{
    public int M(dynamic d)
    {
        checked { return (int)d; }
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       66 (0x42)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_002c
  IL_0007:  ldc.i4.s   17
  IL_0009:  ldtoken    ""int""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0027:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_002c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0031:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003b:  ldarg.1
  IL_003c:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0041:  ret
}");
        }

        [Fact]
        public void Conversion_Implicit_Reference_Return()
        {
            string source = @"
class D { }

class C
{
    public D M(dynamic d) 
    {
        return d;
    }   
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       65 (0x41)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_002b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""D""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0021:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0026:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_002b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_0030:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, D> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>>.Target""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_003a:  ldarg.1
  IL_003b:  callvirt   ""D System.Func<System.Runtime.CompilerServices.CallSite, object, D>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0040:  ret
}
");
        }

        [Fact]
        public void Conversion_Implicit_Reference_Assignment()
        {
            string source = @"
class D { }

class C
{
    D x;

    public void M(dynamic d) 
    {
        x = d;        
    }   
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       71 (0x47)
  .maxstack  4
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__1.<>p__0""
  IL_0006:  brtrue.s   IL_002c
  IL_0008:  ldc.i4.0
  IL_0009:  ldtoken    ""D""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0027:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__1.<>p__0""
  IL_002c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__1.<>p__0""
  IL_0031:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, D> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>>.Target""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__1.<>p__0""
  IL_003b:  ldarg.1
  IL_003c:  callvirt   ""D System.Func<System.Runtime.CompilerServices.CallSite, object, D>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0041:  stfld      ""D C.x""
  IL_0046:  ret
}
");
        }

        [Fact]
        public void Conversion_Explicit_Reference()
        {
            string source = @"
class D { }

class C
{
    public D M(dynamic d) 
    {
        return (D)d;
    }   
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       66 (0x42)
  .maxstack  3
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_002c
  IL_0007:  ldc.i4.s   16
  IL_0009:  ldtoken    ""D""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0027:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_002c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_0031:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, D> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>>.Target""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, D>> C.<>o__0.<>p__0""
  IL_003b:  ldarg.1
  IL_003c:  callvirt   ""D System.Func<System.Runtime.CompilerServices.CallSite, object, D>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0041:  ret
}
");
        }

        [Fact]
        public void Conversion_ArrayIndex()
        {
            string source = @"
public class C
{
    public object M(object[] a, dynamic d)
    {
        return a[d];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       68 (0x44)
  .maxstack  4
  IL_0000:  ldarg.1
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0006:  brtrue.s   IL_002d
  IL_0008:  ldc.i4.s   32
  IL_000a:  ldtoken    ""int""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003c:  ldarg.2
  IL_003d:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0042:  ldelem.ref
  IL_0043:  ret
}
");
        }

        [Fact]
        public void Conversion_ArrayIndex_Checked()
        {
            string source = @"
public class C
{
    public object M(object[] a, dynamic d)
    {
        return checked(a[d]);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       68 (0x44)
  .maxstack  4
  IL_0000:  ldarg.1
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0006:  brtrue.s   IL_002d
  IL_0008:  ldc.i4.s   33
  IL_000a:  ldtoken    ""int""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003c:  ldarg.2
  IL_003d:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0042:  ldelem.ref
  IL_0043:  ret
}");
        }

        [Fact]
        public void Conversion_ArrayIndex_Explicit()
        {
            string source = @"
public class C
{
    public object M(object[] a, dynamic d)
    {
        return a[(int)d];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       68 (0x44)
  .maxstack  4
  IL_0000:  ldarg.1
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0006:  brtrue.s   IL_002d
  IL_0008:  ldc.i4.s   16
  IL_000a:  ldtoken    ""int""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__0""
  IL_003c:  ldarg.2
  IL_003d:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0042:  ldelem.ref
  IL_0043:  ret
}");
        }

        [Fact]
        public void IdentityConversion1()
        {
            string source = @"
public class C
{
    public object M(dynamic d)
    {
        return d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size        2 (0x2)
  .maxstack  1
  IL_0000:  ldarg.1
  IL_0001:  ret
}
");
        }

        [Fact]
        public void IdentityConversion2()
        {
            string source = @"
public class C
{
    public static void M()
    {
        dynamic d = new object();
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size        7 (0x7)
  .maxstack  1
  IL_0000:  newobj     ""object..ctor()""
  IL_0005:  pop
  IL_0006:  ret
}
");
        }

        [Fact]
        public void IdentityConversion3()
        {
            string source = @"
public class C
{
    public dynamic Null()
    {
        return null;
    }
}";

            CompileAndVerifyIL(source, "C.Null", @"
{
  // Code size        2 (0x2)
  .maxstack  1
  IL_0000:  ldnull
  IL_0001:  ret
}
");
        }

        [Fact]
        public void Boxing_ReturnValue()
        {
            string source = @"
public class C
{
    public dynamic Int32()
    {
        return 1;
    }
}";

            CompileAndVerifyIL(source, "C.Int32", @"
{
  // Code size        7 (0x7)
  .maxstack  1
  IL_0000:  ldc.i4.1
  IL_0001:  box        ""int""
  IL_0006:  ret
}
");
        }

        [Fact]
        public void Boxing_AssignmentToDynamicField1()
        {
            string source = @"
class C
{
    dynamic d;

    void M()
    {
        d = true;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       13 (0xd)
  .maxstack  2
  IL_0000:  ldarg.0
  IL_0001:  ldc.i4.1
  IL_0002:  box        ""bool""
  IL_0007:  stfld      ""dynamic C.d""
  IL_000c:  ret
}
");
        }

        [Fact]
        public void Boxing_AssignmentToDynamicField2()
        {
            string source = @"
class C
{
    dynamic d;

    void M()
    {
        new C { d = true };
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       17 (0x11)
  .maxstack  2
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  ldc.i4.1
  IL_0006:  box        ""bool""
  IL_000b:  stfld      ""dynamic C.d""
  IL_0010:  ret
}
");
        }

        [Fact]
        public void Boxing_AssignmentToDynamicIndex()
        {
            string source = @"
class C
{
    dynamic this[int i] { get { return 1; } set { } }

    void M()
    {
        this[1] = true;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       14 (0xe)
  .maxstack  3
  IL_0000:  ldarg.0
  IL_0001:  ldc.i4.1
  IL_0002:  ldc.i4.1
  IL_0003:  box        ""bool""
  IL_0008:  call       ""void C.this[int].set""
  IL_000d:  ret
}
");
        }

        [Fact]
        public void Boxing_AssignmentToProperty1()
        {
            string source = @"
class C
{
    dynamic d { get; set; }

    void M()
    {
        this.d = true;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       13 (0xd)
  .maxstack  2
  IL_0000:  ldarg.0
  IL_0001:  ldc.i4.1
  IL_0002:  box        ""bool""
  IL_0007:  call       ""void C.d.set""
  IL_000c:  ret
}
");
        }

        [Fact]
        public void Boxing_AssignmentToProperty2()
        {
            string source = @"
class C
{
    dynamic d { get; set; }

    void M()
    {
        new C { d = true };
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       17 (0x11)
  .maxstack  2
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  ldc.i4.1
  IL_0006:  box        ""bool""
  IL_000b:  callvirt   ""void C.d.set""
  IL_0010:  ret
}
");
        }

        [Fact]
        public void IsAs()
        {
            string source = @"
using System.Collections.Generic;

public class C
{
    public bool IsObject(dynamic d)
    {
        return d is List<object>;
    }

    public bool IsDynamic(dynamic d)
    {
        return d is List<dynamic>;
    }

    public List<dynamic> As(dynamic d)
    {
        return d as List<dynamic>;
    }
}";
            // TODO: Why does RefEmit use fat header with maxstack = 2?
            var verifier = CompileAndVerifyWithCSharp(source, symbolValidator: module =>
            {
                var pe = (PEModuleSymbol)module;

                // all occurrences of List<dynamic> and List<object> should be unified to a single TypeSpec:
                Assert.Equal(1, pe.Module.GetMetadataReader().GetTableRowCount(TableIndex.TypeSpec));
            });

            verifier.VerifyIL("C.IsObject", @"
{
  // Code size       10 (0xa)
  .maxstack  2
  IL_0000:  ldarg.1
  IL_0001:  isinst     ""System.Collections.Generic.List<object>""
  IL_0006:  ldnull
  IL_0007:  cgt.un
  IL_0009:  ret
}
", realIL: true);

            verifier.VerifyIL("C.IsDynamic", @"
{
  // Code size       10 (0xa)
  .maxstack  2
  IL_0000:  ldarg.1
  IL_0001:  isinst     ""System.Collections.Generic.List<object>""
  IL_0006:  ldnull
  IL_0007:  cgt.un
  IL_0009:  ret
}
", realIL: true);

            verifier.VerifyIL("C.As", @"
{
  // Code size        7 (0x7)
  .maxstack  1
  IL_0000:  ldarg.1
  IL_0001:  isinst     ""System.Collections.Generic.List<object>""
  IL_0006:  ret
}
", realIL: true);
        }

        [Fact]
        public void DelegateCreation()
        {
            string source = @"
using System;

public class C
{
    dynamic d = null;
    Action a;	    

    public virtual void M()
    {
        a = new System.Action(d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       87 (0x57)
  .maxstack  4
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__2.<>p__0""
  IL_0006:  brtrue.s   IL_002c
  IL_0008:  ldc.i4.0
  IL_0009:  ldtoken    ""System.Action""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0027:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__2.<>p__0""
  IL_002c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__2.<>p__0""
  IL_0031:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>>.Target""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__2.<>p__0""
  IL_003b:  ldarg.0
  IL_003c:  ldfld      ""dynamic C.d""
  IL_0041:  callvirt   ""System.Action System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0046:  ldftn      ""void System.Action.Invoke()""
  IL_004c:  newobj     ""System.Action..ctor(object, System.IntPtr)""
  IL_0051:  stfld      ""System.Action C.a""
  IL_0056:  ret
}
");
        }

        [Fact]
        public void TestThrowDynamic()
        {
            var source = @"
using System;
class C
{
    public static void Main()
    {
        M(null);
        M(new Exception());
        M(new ArgumentException());
        M(string.Empty);
    }
    static void M(dynamic d)
    {
        try
        {
            throw d;
        }
        catch (Exception ex)
        {
            System.Console.WriteLine(ex.GetType().Name);
        }
    }
}
";
            CompileAndVerifyWithCSharp(source, expectedOutput:
@"NullReferenceException
Exception
ArgumentException
RuntimeBinderException");
        }

        #endregion

        #region Operators

        [Fact]
        public void Multiplication_Dynamic_Dynamic()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d * d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   26
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void Multiplication_Dynamic_Static()
        {
            string source = @"
public class C
{
    public dynamic M(C c, dynamic d)
    {
        return c * d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   26
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.1
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, C, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void Multiplication_Dynamic_Literal()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d * 1;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   26
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.3
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldc.i4.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void Multiplication_Checked()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return checked(d * d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.1
  IL_0008:  ldc.i4.s   26
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void Division()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d / d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   12
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void Remainder()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d % d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   25
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void LeftShift()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d << d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   19
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void RightShift()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d >> d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   41
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void And()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d & d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       83 (0x53)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003c
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.2
  IL_0009:  ldtoken    ""C""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldc.i4.2
  IL_0014:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0019:  dup
  IL_001a:  ldc.i4.0
  IL_001b:  ldc.i4.0
  IL_001c:  ldnull
  IL_001d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0022:  stelem.ref
  IL_0023:  dup
  IL_0024:  ldc.i4.1
  IL_0025:  ldc.i4.0
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0032:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0037:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0041:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004b:  ldarg.1
  IL_004c:  ldarg.1
  IL_004d:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0052:  ret
}
");
        }

        [Fact]
        public void Or()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d | d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   36
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void Xor()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d ^ d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   14
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void Equal()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d1, dynamic d2)
    {
        return d1 == d2;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   13
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}");
        }

        [Fact]
        public void NotEqual()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d1, dynamic d2)
    {
        return d1 != d2;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   35
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}");
        }

        [Fact]
        public void LessThan()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d1, dynamic d2)
    {
        return d1 < d2;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   20
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}");
        }

        [Fact]
        public void GreaterThan()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d1, dynamic d2)
    {
        return d1 > d2;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   15
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}");
        }

        [Fact]
        public void LessThanEquals()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d1, dynamic d2)
    {
        return d1 <= d2;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   21
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}");
        }

        [Fact]
        public void GreaterThanEquals()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d1, dynamic d2)
    {
        return d1 >= d2;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   16
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  ret
}");
        }

        [Fact]
        public void UnaryPlus()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return +d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       73 (0x49)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   29
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldarg.1
  IL_0043:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0048:  ret
}
");
        }

        [Fact]
        public void UnaryMinus()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return -d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       73 (0x49)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   28
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldarg.1
  IL_0043:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0048:  ret
}");
        }

        [Fact]
        public void BitwiseComplement()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return ~d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       73 (0x49)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   82
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldarg.1
  IL_0043:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0048:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_IsTrue()
        {
            string source = @"
class C
{
    public static int M()
    {
        dynamic dy = null;
        if (dy.Property_bool)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
}";
            var verifier = CompileAndVerifyIL(source, "C.M", expectedUnoptimizedIL: @"
{
  // Code size      169 (0xa9)
  .maxstack  10
  .locals init (object V_0, //dy
                bool V_1,
                int V_2)
 -IL_0000:  nop
 -IL_0001:  ldnull
  IL_0002:  stloc.0
 -IL_0003:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0008:  brfalse.s  IL_000c
  IL_000a:  br.s       IL_0038
  IL_000c:  ldc.i4.0
  IL_000d:  ldc.i4.s   83
  IL_000f:  ldtoken    ""C""
  IL_0014:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0019:  ldc.i4.1
  IL_001a:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001f:  dup
  IL_0020:  ldc.i4.0
  IL_0021:  ldc.i4.0
  IL_0022:  ldnull
  IL_0023:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0028:  stelem.ref
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0033:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0038:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_003d:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0042:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_004c:  brfalse.s  IL_0050
  IL_004e:  br.s       IL_007f
  IL_0050:  ldc.i4.0
  IL_0051:  ldstr      ""Property_bool""
  IL_0056:  ldtoken    ""C""
  IL_005b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0060:  ldc.i4.1
  IL_0061:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0066:  dup
  IL_0067:  ldc.i4.0
  IL_0068:  ldc.i4.0
  IL_0069:  ldnull
  IL_006a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006f:  stelem.ref
  IL_0070:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0075:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_007f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0084:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0089:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_008e:  ldloc.0
  IL_008f:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0094:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0099:  stloc.1
 ~IL_009a:  ldloc.1
  IL_009b:  brfalse.s  IL_00a2
 -IL_009d:  nop
 -IL_009e:  ldc.i4.1
  IL_009f:  stloc.2
  IL_00a0:  br.s       IL_00a7
 -IL_00a2:  nop
 -IL_00a3:  ldc.i4.0
  IL_00a4:  stloc.2
  IL_00a5:  br.s       IL_00a7
 -IL_00a7:  ldloc.2
  IL_00a8:  ret
}
",
 expectedOptimizedIL: @"
{
  // Code size      154 (0x9a)
  .maxstack  10
  .locals init (object V_0) //dy
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0007:  brtrue.s   IL_0035
  IL_0009:  ldc.i4.0
  IL_000a:  ldc.i4.s   83
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.1
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0030:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_003a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0044:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0049:  brtrue.s   IL_007a
  IL_004b:  ldc.i4.0
  IL_004c:  ldstr      ""Property_bool""
  IL_0051:  ldtoken    ""C""
  IL_0056:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005b:  ldc.i4.1
  IL_005c:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0061:  dup
  IL_0062:  ldc.i4.0
  IL_0063:  ldc.i4.0
  IL_0064:  ldnull
  IL_0065:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006a:  stelem.ref
  IL_006b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0070:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0075:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_007a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_007f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0084:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0089:  ldloc.0
  IL_008a:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_008f:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0094:  brfalse.s  IL_0098
  IL_0096:  ldc.i4.1
  IL_0097:  ret
  IL_0098:  ldc.i4.0
  IL_0099:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_Not()
        {
            string source = @"
public class C
{
    public static int M(dynamic d)
    {
        if (!d)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      149 (0x95)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   83
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0042:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0047:  brtrue.s   IL_0075
  IL_0049:  ldc.i4.0
  IL_004a:  ldc.i4.s   34
  IL_004c:  ldtoken    ""C""
  IL_0051:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0056:  ldc.i4.1
  IL_0057:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_005c:  dup
  IL_005d:  ldc.i4.0
  IL_005e:  ldc.i4.0
  IL_005f:  ldnull
  IL_0060:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0065:  stelem.ref
  IL_0066:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_006b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0070:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0075:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_007a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_007f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0084:  ldarg.0
  IL_0085:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_008a:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_008f:  brfalse.s  IL_0093
  IL_0091:  ldc.i4.1
  IL_0092:  ret
  IL_0093:  ldc.i4.0
  IL_0094:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_And()
        {
            string source = @"
public class C
{
    public static int M(dynamic d1, dynamic d2)
    {
        if (d1 && d2)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      236 (0xec)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   83
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0042:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0047:  brtrue.s   IL_0075
  IL_0049:  ldc.i4.0
  IL_004a:  ldc.i4.s   84
  IL_004c:  ldtoken    ""C""
  IL_0051:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0056:  ldc.i4.1
  IL_0057:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_005c:  dup
  IL_005d:  ldc.i4.0
  IL_005e:  ldc.i4.0
  IL_005f:  ldnull
  IL_0060:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0065:  stelem.ref
  IL_0066:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_006b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0070:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0075:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_007a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_007f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0084:  ldarg.0
  IL_0085:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_008a:  brtrue.s   IL_00e0
  IL_008c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0091:  brtrue.s   IL_00c8
  IL_0093:  ldc.i4.8
  IL_0094:  ldc.i4.2
  IL_0095:  ldtoken    ""C""
  IL_009a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_009f:  ldc.i4.2
  IL_00a0:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00a5:  dup
  IL_00a6:  ldc.i4.0
  IL_00a7:  ldc.i4.0
  IL_00a8:  ldnull
  IL_00a9:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ae:  stelem.ref
  IL_00af:  dup
  IL_00b0:  ldc.i4.1
  IL_00b1:  ldc.i4.0
  IL_00b2:  ldnull
  IL_00b3:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b8:  stelem.ref
  IL_00b9:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00be:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00c3:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00c8:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00cd:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00d2:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00d7:  ldarg.0
  IL_00d8:  ldarg.1
  IL_00d9:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00de:  br.s       IL_00e1
  IL_00e0:  ldarg.0
  IL_00e1:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00e6:  brfalse.s  IL_00ea
  IL_00e8:  ldc.i4.1
  IL_00e9:  ret
  IL_00ea:  ldc.i4.0
  IL_00eb:  ret
}");
        }

        [WorkItem(547676, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/547676")]
        [Fact]
        public void BooleanOperation_Bug547676()
        {
            string source = @"
public class C
{
    public static int M(dynamic d1, dynamic d2)
    {
        if ((d1 == 1) && d2 && d2)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      480 (0x1e0)
  .maxstack  10
  .locals init (object V_0,
  object V_1)
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__5""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   83
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__5""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__5""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__5""
  IL_0042:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0047:  brtrue.s   IL_007f
  IL_0049:  ldc.i4.0
  IL_004a:  ldc.i4.s   13
  IL_004c:  ldtoken    ""C""
  IL_0051:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0056:  ldc.i4.2
  IL_0057:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_005c:  dup
  IL_005d:  ldc.i4.0
  IL_005e:  ldc.i4.0
  IL_005f:  ldnull
  IL_0060:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0065:  stelem.ref
  IL_0066:  dup
  IL_0067:  ldc.i4.1
  IL_0068:  ldc.i4.3
  IL_0069:  ldnull
  IL_006a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006f:  stelem.ref
  IL_0070:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0075:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_007f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0084:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0089:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_008e:  ldarg.0
  IL_008f:  ldc.i4.1
  IL_0090:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_0095:  stloc.1
  IL_0096:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_009b:  brtrue.s   IL_00c9
  IL_009d:  ldc.i4.0
  IL_009e:  ldc.i4.s   84
  IL_00a0:  ldtoken    ""C""
  IL_00a5:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00aa:  ldc.i4.1
  IL_00ab:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00b0:  dup
  IL_00b1:  ldc.i4.0
  IL_00b2:  ldc.i4.0
  IL_00b3:  ldnull
  IL_00b4:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b9:  stelem.ref
  IL_00ba:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00bf:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00c4:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_00c9:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_00ce:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_00d3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_00d8:  ldloc.1
  IL_00d9:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00de:  brtrue.s   IL_0134
  IL_00e0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_00e5:  brtrue.s   IL_011c
  IL_00e7:  ldc.i4.8
  IL_00e8:  ldc.i4.2
  IL_00e9:  ldtoken    ""C""
  IL_00ee:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00f3:  ldc.i4.2
  IL_00f4:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00f9:  dup
  IL_00fa:  ldc.i4.0
  IL_00fb:  ldc.i4.0
  IL_00fc:  ldnull
  IL_00fd:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0102:  stelem.ref
  IL_0103:  dup
  IL_0104:  ldc.i4.1
  IL_0105:  ldc.i4.0
  IL_0106:  ldnull
  IL_0107:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_010c:  stelem.ref
  IL_010d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0112:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0117:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_011c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_0121:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0126:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_012b:  ldloc.1
  IL_012c:  ldarg.1
  IL_012d:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0132:  br.s       IL_0135
  IL_0134:  ldloc.1
  IL_0135:  stloc.0
  IL_0136:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__4""
  IL_013b:  brtrue.s   IL_0169
  IL_013d:  ldc.i4.0
  IL_013e:  ldc.i4.s   84
  IL_0140:  ldtoken    ""C""
  IL_0145:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_014a:  ldc.i4.1
  IL_014b:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0150:  dup
  IL_0151:  ldc.i4.0
  IL_0152:  ldc.i4.0
  IL_0153:  ldnull
  IL_0154:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0159:  stelem.ref
  IL_015a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_015f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0164:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__4""
  IL_0169:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__4""
  IL_016e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0173:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__4""
  IL_0178:  ldloc.0
  IL_0179:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_017e:  brtrue.s   IL_01d4
  IL_0180:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__3""
  IL_0185:  brtrue.s   IL_01bc
  IL_0187:  ldc.i4.8
  IL_0188:  ldc.i4.2
  IL_0189:  ldtoken    ""C""
  IL_018e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0193:  ldc.i4.2
  IL_0194:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0199:  dup
  IL_019a:  ldc.i4.0
  IL_019b:  ldc.i4.0
  IL_019c:  ldnull
  IL_019d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_01a2:  stelem.ref
  IL_01a3:  dup
  IL_01a4:  ldc.i4.1
  IL_01a5:  ldc.i4.0
  IL_01a6:  ldnull
  IL_01a7:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_01ac:  stelem.ref
  IL_01ad:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_01b2:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_01b7:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__3""
  IL_01bc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__3""
  IL_01c1:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_01c6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__3""
  IL_01cb:  ldloc.0
  IL_01cc:  ldarg.1
  IL_01cd:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_01d2:  br.s       IL_01d5
  IL_01d4:  ldloc.0
  IL_01d5:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_01da:  brfalse.s  IL_01de
  IL_01dc:  ldc.i4.1
  IL_01dd:  ret
  IL_01de:  ldc.i4.0
  IL_01df:  ret
}");
        }

        [Fact]
        public void BooleanOperation_Or_Dynamic_Dynamic()
        {
            string source = @"
public class C
{
    public static int M(dynamic d1, dynamic d2)
    {
        if (d1 || d2)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
}";
            // Dev11 emits less efficient code:
            //   IsTrue(IsTrue(d1) ? d1 : Or(d1, d2)) 
            //
            // Roslyn optimizes away the second dynamic call IsTrue on d1:
            //   IsTrue(d1) || IsTrue(Or(d1, d2))

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      237 (0xed)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   83
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0042:  ldarg.0
  IL_0043:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0048:  brtrue     IL_00e9
  IL_004d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0052:  brtrue.s   IL_0080
  IL_0054:  ldc.i4.0
  IL_0055:  ldc.i4.s   83
  IL_0057:  ldtoken    ""C""
  IL_005c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0061:  ldc.i4.1
  IL_0062:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0067:  dup
  IL_0068:  ldc.i4.0
  IL_0069:  ldc.i4.0
  IL_006a:  ldnull
  IL_006b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0070:  stelem.ref
  IL_0071:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0076:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0080:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0085:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_008a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_008f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0094:  brtrue.s   IL_00cc
  IL_0096:  ldc.i4.8
  IL_0097:  ldc.i4.s   36
  IL_0099:  ldtoken    ""C""
  IL_009e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00a3:  ldc.i4.2
  IL_00a4:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00a9:  dup
  IL_00aa:  ldc.i4.0
  IL_00ab:  ldc.i4.0
  IL_00ac:  ldnull
  IL_00ad:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b2:  stelem.ref
  IL_00b3:  dup
  IL_00b4:  ldc.i4.1
  IL_00b5:  ldc.i4.0
  IL_00b6:  ldnull
  IL_00b7:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00bc:  stelem.ref
  IL_00bd:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00c2:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00c7:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00cc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00d1:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00d6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00db:  ldarg.0
  IL_00dc:  ldarg.1
  IL_00dd:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00e2:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00e7:  brfalse.s  IL_00eb
  IL_00e9:  ldc.i4.1
  IL_00ea:  ret
  IL_00eb:  ldc.i4.0
  IL_00ec:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_Or_Static_Dynamic()
        {
            string source = @"
public class C
{
    public static int M(bool b, dynamic d)
    {
        if (b || d)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      166 (0xa6)
  .maxstack  10
  IL_0000:  ldarg.0
  IL_0001:  brtrue     IL_00a2
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_000b:  brtrue.s   IL_0039
  IL_000d:  ldc.i4.0
  IL_000e:  ldc.i4.s   83
  IL_0010:  ldtoken    ""C""
  IL_0015:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001a:  ldc.i4.1
  IL_001b:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0020:  dup
  IL_0021:  ldc.i4.0
  IL_0022:  ldc.i4.0
  IL_0023:  ldnull
  IL_0024:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0029:  stelem.ref
  IL_002a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0034:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0039:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_003e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0043:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0048:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_004d:  brtrue.s   IL_0085
  IL_004f:  ldc.i4.8
  IL_0050:  ldc.i4.s   36
  IL_0052:  ldtoken    ""C""
  IL_0057:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005c:  ldc.i4.2
  IL_005d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0062:  dup
  IL_0063:  ldc.i4.0
  IL_0064:  ldc.i4.1
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  dup
  IL_006d:  ldc.i4.1
  IL_006e:  ldc.i4.0
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_007b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0080:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0085:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_008a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Target""
  IL_008f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0094:  ldarg.0
  IL_0095:  ldarg.1
  IL_0096:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, bool, object)""
  IL_009b:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00a0:  brfalse.s  IL_00a4
  IL_00a2:  ldc.i4.1
  IL_00a3:  ret
  IL_00a4:  ldc.i4.0
  IL_00a5:  ret
}");
        }

        [Fact]
        public void BooleanOperation_Or_ConstantOperand_False()
        {
            string source = @"
class C
{  
    int M()
    {
        dynamic d = null;
        return (false || d) ? 1 : 2;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      162 (0xa2)
  .maxstack  10
  .locals init (object V_0) //d
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0007:  brtrue.s   IL_0035
  IL_0009:  ldc.i4.0
  IL_000a:  ldc.i4.s   83
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.1
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0030:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_003a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0044:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0049:  brtrue.s   IL_0081
  IL_004b:  ldc.i4.8
  IL_004c:  ldc.i4.s   36
  IL_004e:  ldtoken    ""C""
  IL_0053:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0058:  ldc.i4.2
  IL_0059:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_005e:  dup
  IL_005f:  ldc.i4.0
  IL_0060:  ldc.i4.3
  IL_0061:  ldnull
  IL_0062:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0067:  stelem.ref
  IL_0068:  dup
  IL_0069:  ldc.i4.1
  IL_006a:  ldc.i4.0
  IL_006b:  ldnull
  IL_006c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0071:  stelem.ref
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0077:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0081:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0086:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Target""
  IL_008b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0090:  ldc.i4.0
  IL_0091:  ldloc.0
  IL_0092:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, bool, object)""
  IL_0097:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_009c:  brtrue.s   IL_00a0
  IL_009e:  ldc.i4.2
  IL_009f:  ret
  IL_00a0:  ldc.i4.1
  IL_00a1:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_Or_ConstantOperand_True()
        {
            string source = @"
class C
{  
    int M()
    {
        dynamic d = null;
        return (true || d) ? 1 : 2;
    }
}
";
            // Dev11 emits: 
            // IsTrue(IsTrue(true) ? true : Or(true, d)) ? 1 : 2
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size        2 (0x2)
  .maxstack  1
  IL_0000:  ldc.i4.1
  IL_0001:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_Add_ConstantOperand_False()
        {
            string source = @"
class C
{  
    int M()
    {
        dynamic d = null;
        return (false && d) ? 1 : 2;
    }
}
";
            // Dev11:  IsTrue(IsFalse(false) ? false : And(false, d)) ? 1 : 2
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size        2 (0x2)
  .maxstack  1
  IL_0000:  ldc.i4.2
  IL_0001:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_ConstantPropagation()
        {
            string source = @"
class C
{  
    int M()
    {
        dynamic d = null;
        return (!(false && d) || d) ? 1 : 2;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size        2 (0x2)
  .maxstack  1
  IL_0000:  ldc.i4.1
  IL_0001:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_ConstantPropagation2()
        {
            string source = @"
class C
{  
    int M()
    {
        dynamic d = null;
        return ((dynamic)false) ? 1 : 2;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size        2 (0x2)
  .maxstack  1
  IL_0000:  ldc.i4.2
  IL_0001:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_Add_ConstantOperand_True()
        {
            string source = @"
class C
{  
    int M()
    {
        dynamic d = null;
        return (true && d) ? 1 : 2;
    }
}
";
            // Dev11:  IsTrue(IsFalse(true) ? true : And(true, d)) ? 1 : 2
            // Roslyn: IsTrue(And(true, d)) ? 1 : 2 
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      161 (0xa1)
  .maxstack  10
  .locals init (object V_0) //d
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0007:  brtrue.s   IL_0035
  IL_0009:  ldc.i4.0
  IL_000a:  ldc.i4.s   83
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.1
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0030:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_003a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__1""
  IL_0044:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0049:  brtrue.s   IL_0080
  IL_004b:  ldc.i4.8
  IL_004c:  ldc.i4.2
  IL_004d:  ldtoken    ""C""
  IL_0052:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0057:  ldc.i4.2
  IL_0058:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_005d:  dup
  IL_005e:  ldc.i4.0
  IL_005f:  ldc.i4.3
  IL_0060:  ldnull
  IL_0061:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0066:  stelem.ref
  IL_0067:  dup
  IL_0068:  ldc.i4.1
  IL_0069:  ldc.i4.0
  IL_006a:  ldnull
  IL_006b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0070:  stelem.ref
  IL_0071:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0076:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0080:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_0085:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Target""
  IL_008a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__0.<>p__0""
  IL_008f:  ldc.i4.1
  IL_0090:  ldloc.0
  IL_0091:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, bool, object)""
  IL_0096:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_009b:  brtrue.s   IL_009f
  IL_009d:  ldc.i4.2
  IL_009e:  ret
  IL_009f:  ldc.i4.1
  IL_00a0:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_Or_BoxedOperand()
        {
            string source = @"
class C
{  
    bool b = false;

    dynamic M()
    {
        dynamic d = null;
        return b || d;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      103 (0x67)
  .maxstack  8
  .locals init (object V_0, //d
                bool V_1)
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldarg.0
  IL_0003:  ldfld      ""bool C.b""
  IL_0008:  stloc.1
  IL_0009:  ldloc.1
  IL_000a:  brtrue.s   IL_0060
  IL_000c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_0011:  brtrue.s   IL_0049
  IL_0013:  ldc.i4.8
  IL_0014:  ldc.i4.s   36
  IL_0016:  ldtoken    ""C""
  IL_001b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0020:  ldc.i4.2
  IL_0021:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0026:  dup
  IL_0027:  ldc.i4.0
  IL_0028:  ldc.i4.1
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.1
  IL_0032:  ldc.i4.0
  IL_0033:  ldnull
  IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0039:  stelem.ref
  IL_003a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0044:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_0049:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_004e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Target""
  IL_0053:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_0058:  ldloc.1
  IL_0059:  ldloc.0
  IL_005a:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, bool, object)""
  IL_005f:  ret
  IL_0060:  ldloc.1
  IL_0061:  box        ""bool""
  IL_0066:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_And_BoxedOperand()
        {
            string source = @"
class C
{  
    bool b = false;

    dynamic M()
    {
        dynamic d = null;
        return b && d;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      102 (0x66)
  .maxstack  8
  .locals init (object V_0, //d
                bool V_1)
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldarg.0
  IL_0003:  ldfld      ""bool C.b""
  IL_0008:  stloc.1
  IL_0009:  ldloc.1
  IL_000a:  brfalse.s  IL_005f
  IL_000c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_0011:  brtrue.s   IL_0048
  IL_0013:  ldc.i4.8
  IL_0014:  ldc.i4.2
  IL_0015:  ldtoken    ""C""
  IL_001a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001f:  ldc.i4.2
  IL_0020:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0025:  dup
  IL_0026:  ldc.i4.0
  IL_0027:  ldc.i4.1
  IL_0028:  ldnull
  IL_0029:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002e:  stelem.ref
  IL_002f:  dup
  IL_0030:  ldc.i4.1
  IL_0031:  ldc.i4.0
  IL_0032:  ldnull
  IL_0033:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0038:  stelem.ref
  IL_0039:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003e:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0043:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_0048:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_004d:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Target""
  IL_0052:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__0""
  IL_0057:  ldloc.1
  IL_0058:  ldloc.0
  IL_0059:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, bool, object)""
  IL_005e:  ret
  IL_005f:  ldloc.1
  IL_0060:  box        ""bool""
  IL_0065:  ret
}
");
        }

        [Fact]
        public void BooleanOperation_Or_UserDefinedTrue_Dynamic()
        {
            string source = @"
class B
{
    public static bool operator true(B t) { return true; }
    public static bool operator false(B t) { return false; }
}

class C
{  
    B b = new B();
    
    int M(dynamic d)
    {
        if (b || d)
        {
            return 1;
        }

        return 2;
    }
}
";
            // Dev11:  IsTrue(B.op_True(b) ? b : Or(b, d)) ? 1 : 2
            // Roslyn: B.op_True(b) || IsTrue(Or(b,d)) ? 1 : 2 
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      178 (0xb2)
  .maxstack  10
  .locals init (B V_0)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""B C.b""
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  call       ""bool B.op_True(B)""
  IL_000d:  brtrue     IL_00ae
  IL_0012:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0017:  brtrue.s   IL_0045
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.s   83
  IL_001c:  ldtoken    ""C""
  IL_0021:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0026:  ldc.i4.1
  IL_0027:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002c:  dup
  IL_002d:  ldc.i4.0
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_004a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0054:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0059:  brtrue.s   IL_0091
  IL_005b:  ldc.i4.8
  IL_005c:  ldc.i4.s   36
  IL_005e:  ldtoken    ""C""
  IL_0063:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0068:  ldc.i4.2
  IL_0069:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_006e:  dup
  IL_006f:  ldc.i4.0
  IL_0070:  ldc.i4.1
  IL_0071:  ldnull
  IL_0072:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0077:  stelem.ref
  IL_0078:  dup
  IL_0079:  ldc.i4.1
  IL_007a:  ldc.i4.0
  IL_007b:  ldnull
  IL_007c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0081:  stelem.ref
  IL_0082:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0087:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_008c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0091:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0096:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Target""
  IL_009b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_00a0:  ldloc.0
  IL_00a1:  ldarg.1
  IL_00a2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, B, object)""
  IL_00a7:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00ac:  brfalse.s  IL_00b0
  IL_00ae:  ldc.i4.1
  IL_00af:  ret
  IL_00b0:  ldc.i4.2
  IL_00b1:  ret
}
");
        }

        /// <summary>
        /// Implicit conversion has precedence over operator true/false.
        /// </summary>
        [Fact]
        public void BooleanOperation_Or_UserDefinedImplicitConversion_Dynamic()
        {
            string source = @"
class B
{
    public static implicit operator bool(B t) { return true; }
    public static bool operator true(B t) { return true; }
    public static bool operator false(B t) { return false; }
}

class C
{  
    B b = new B();
    
    int M(dynamic d)
    {
        if (b || d)
        {
            return 1;
        }

        return 2;
    }
}
";
            // Dev11:  IsTrue(B.op_Implicit(b) ? b : Or(b, d)) ? 1 : 2
            // Roslyn: B.op_Implicit(b) || IsTrue(Or(b,d)) ? 1 : 2 
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      178 (0xb2)
  .maxstack  10
  .locals init (B V_0)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""B C.b""
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  call       ""bool B.op_Implicit(B)""
  IL_000d:  brtrue     IL_00ae
  IL_0012:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0017:  brtrue.s   IL_0045
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.s   83
  IL_001c:  ldtoken    ""C""
  IL_0021:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0026:  ldc.i4.1
  IL_0027:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002c:  dup
  IL_002d:  ldc.i4.0
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_004a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0054:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0059:  brtrue.s   IL_0091
  IL_005b:  ldc.i4.8
  IL_005c:  ldc.i4.s   36
  IL_005e:  ldtoken    ""C""
  IL_0063:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0068:  ldc.i4.2
  IL_0069:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_006e:  dup
  IL_006f:  ldc.i4.0
  IL_0070:  ldc.i4.1
  IL_0071:  ldnull
  IL_0072:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0077:  stelem.ref
  IL_0078:  dup
  IL_0079:  ldc.i4.1
  IL_007a:  ldc.i4.0
  IL_007b:  ldnull
  IL_007c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0081:  stelem.ref
  IL_0082:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0087:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_008c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0091:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0096:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Target""
  IL_009b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_00a0:  ldloc.0
  IL_00a1:  ldarg.1
  IL_00a2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, B, object)""
  IL_00a7:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00ac:  brfalse.s  IL_00b0
  IL_00ae:  ldc.i4.1
  IL_00af:  ret
  IL_00b0:  ldc.i4.2
  IL_00b1:  ret
}");
        }

        [Fact]
        public void BooleanOperation_And_UserDefinedTrue_Dynamic()
        {
            string source = @"
class B
{
    public static bool operator true(B t) { return true; }
    public static bool operator false(B t) { return false; }
}

class C
{  
    B b = new B();
    
    int M(dynamic d)
    {
        if (b && d)
        {
            return 1;
        }

        return 2;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      177 (0xb1)
  .maxstack  10
  .locals init (B V_0)
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   83
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0042:  ldarg.0
  IL_0043:  ldfld      ""B C.b""
  IL_0048:  stloc.0
  IL_0049:  ldloc.0
  IL_004a:  call       ""bool B.op_False(B)""
  IL_004f:  brtrue.s   IL_00a5
  IL_0051:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0056:  brtrue.s   IL_008d
  IL_0058:  ldc.i4.8
  IL_0059:  ldc.i4.2
  IL_005a:  ldtoken    ""C""
  IL_005f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0064:  ldc.i4.2
  IL_0065:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_006a:  dup
  IL_006b:  ldc.i4.0
  IL_006c:  ldc.i4.1
  IL_006d:  ldnull
  IL_006e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0073:  stelem.ref
  IL_0074:  dup
  IL_0075:  ldc.i4.1
  IL_0076:  ldc.i4.0
  IL_0077:  ldnull
  IL_0078:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007d:  stelem.ref
  IL_007e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0083:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0088:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_008d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0092:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Target""
  IL_0097:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_009c:  ldloc.0
  IL_009d:  ldarg.1
  IL_009e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, B, object)""
  IL_00a3:  br.s       IL_00a6
  IL_00a5:  ldloc.0
  IL_00a6:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00ab:  brfalse.s  IL_00af
  IL_00ad:  ldc.i4.1
  IL_00ae:  ret
  IL_00af:  ldc.i4.2
  IL_00b0:  ret
}
");
        }

        /// <summary>
        /// Implicit conversion has precedence over operator true/false.
        /// </summary>
        [Fact]
        public void BooleanOperation_And_UserDefinedImplicitConversion_Dynamic()
        {
            string source = @"
class B
{
    public static implicit operator bool(B t) { return true; }
    public static bool operator true(B t) { return true; }
    public static bool operator false(B t) { return false; }
}

class C
{  
    B b = new B();
    
    int M(dynamic d)
    {
        if (b && d)
        {
            return 1;
        }

        return 2;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      177 (0xb1)
  .maxstack  10
  .locals init (B V_0)
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   83
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0042:  ldarg.0
  IL_0043:  ldfld      ""B C.b""
  IL_0048:  stloc.0
  IL_0049:  ldloc.0
  IL_004a:  call       ""bool B.op_Implicit(B)""
  IL_004f:  brfalse.s  IL_00a5
  IL_0051:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0056:  brtrue.s   IL_008d
  IL_0058:  ldc.i4.8
  IL_0059:  ldc.i4.2
  IL_005a:  ldtoken    ""C""
  IL_005f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0064:  ldc.i4.2
  IL_0065:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_006a:  dup
  IL_006b:  ldc.i4.0
  IL_006c:  ldc.i4.1
  IL_006d:  ldnull
  IL_006e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0073:  stelem.ref
  IL_0074:  dup
  IL_0075:  ldc.i4.1
  IL_0076:  ldc.i4.0
  IL_0077:  ldnull
  IL_0078:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007d:  stelem.ref
  IL_007e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0083:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0088:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_008d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_0092:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>>.Target""
  IL_0097:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>> C.<>o__1.<>p__0""
  IL_009c:  ldloc.0
  IL_009d:  ldarg.1
  IL_009e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, B, object)""
  IL_00a3:  br.s       IL_00a6
  IL_00a5:  ldloc.0
  IL_00a6:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00ab:  brfalse.s  IL_00af
  IL_00ad:  ldc.i4.1
  IL_00ae:  ret
  IL_00af:  ldc.i4.2
  IL_00b0:  ret
}
");
        }

        private const string StructWithUserDefinedBooleanOperators = @"
struct S
{
    private int num;
    private string str;

    public S(int num, char chr) 
    { 
        this.num = num;
        this.str = chr.ToString();
    }

    public S(int num, string str) 
    { 
        this.num = num;
        this.str = str;
    }

    public static S operator & (S x, S y) 
    { 
        return new S(x.num & y.num, '(' + x.str + '&' + y.str + ')'); 
    }

    public static S operator | (S x, S y) 
    { 
        return new S(x.num | y.num, '(' + x.str + '|' + y.str + ')'); 
    }

    public static bool operator true(S s) 
    { 
        return s.num != 0; 
    }

    public static bool operator false(S s) 
    { 
        return s.num == 0; 
    }

    public override string ToString() 
    { 
        return this.num.ToString() + ':' + this.str; 
    }
}
";

        [Fact]
        public void BooleanOperation_NestedOperators1()
        {
            // Analogue to OperatorTests.TestUserDefinedLogicalOperators1.

            string source = @"
using System;

class C
{
    static void Main()
    {
        dynamic f = new S(0, 'f');
        dynamic t = new S(1, 't');
        Console.WriteLine((f && f) && f);
        Console.WriteLine((f && f) && t);
        Console.WriteLine((f && t) && f);
        Console.WriteLine((f && t) && t);
        Console.WriteLine((t && f) && f);
        Console.WriteLine((t && f) && t);
        Console.WriteLine((t && t) && f);
        Console.WriteLine((t && t) && t);
        Console.WriteLine('-');
        Console.WriteLine((f && f) || f);
        Console.WriteLine((f && f) || t);
        Console.WriteLine((f && t) || f);
        Console.WriteLine((f && t) || t);
        Console.WriteLine((t && f) || f);
        Console.WriteLine((t && f) || t);
        Console.WriteLine((t && t) || f);
        Console.WriteLine((t && t) || t);
        Console.WriteLine('-');
        Console.WriteLine((f || f) && f);
        Console.WriteLine((f || f) && t);
        Console.WriteLine((f || t) && f);
        Console.WriteLine((f || t) && t);
        Console.WriteLine((t || f) && f);
        Console.WriteLine((t || f) && t);
        Console.WriteLine((t || t) && f);
        Console.WriteLine((t || t) && t);
        Console.WriteLine('-');
        Console.WriteLine((f || f) || f);
        Console.WriteLine((f || f) || t);
        Console.WriteLine((f || t) || f);
        Console.WriteLine((f || t) || t);
        Console.WriteLine((t || f) || f);
        Console.WriteLine((t || f) || t);
        Console.WriteLine((t || t) || f);
        Console.WriteLine((t || t) || t);
        Console.WriteLine('-');
        Console.WriteLine(f && (f && f));
        Console.WriteLine(f && (f && t));
        Console.WriteLine(f && (t && f));
        Console.WriteLine(f && (t && t));
        Console.WriteLine(t && (f && f));
        Console.WriteLine(t && (f && t));
        Console.WriteLine(t && (t && f));
        Console.WriteLine(t && (t && t));
        Console.WriteLine('-');
        Console.WriteLine(f && (f || f));
        Console.WriteLine(f && (f || t));
        Console.WriteLine(f && (t || f));
        Console.WriteLine(f && (t || t));
        Console.WriteLine(t && (f || f));
        Console.WriteLine(t && (f || t));
        Console.WriteLine(t && (t || f));
        Console.WriteLine(t && (t || t));
        Console.WriteLine('-');
        Console.WriteLine(f || (f && f));
        Console.WriteLine(f || (f && t));
        Console.WriteLine(f || (t && f));
        Console.WriteLine(f || (t && t));
        Console.WriteLine(t || (f && f));
        Console.WriteLine(t || (f && t));
        Console.WriteLine(t || (t && f));
        Console.WriteLine(t || (t && t));
        Console.WriteLine('-');
        Console.WriteLine(f || (f || f));
        Console.WriteLine(f || (f || t));
        Console.WriteLine(f || (t || f));
        Console.WriteLine(f || (t || t));
        Console.WriteLine(t || (f || f));
        Console.WriteLine(t || (f || t));
        Console.WriteLine(t || (t || f));
        Console.WriteLine(t || (t || t));
    }
}

" + StructWithUserDefinedBooleanOperators;

            string output = @"0:f
0:f
0:f
0:f
0:(t&f)
0:(t&f)
0:((t&t)&f)
1:((t&t)&t)
-
0:(f|f)
1:(f|t)
0:(f|f)
1:(f|t)
0:((t&f)|f)
1:((t&f)|t)
1:(t&t)
1:(t&t)
-
0:(f|f)
0:(f|f)
0:((f|t)&f)
1:((f|t)&t)
0:(t&f)
1:(t&t)
0:(t&f)
1:(t&t)
-
0:((f|f)|f)
1:((f|f)|t)
1:(f|t)
1:(f|t)
1:t
1:t
1:t
1:t
-
0:f
0:f
0:f
0:f
0:(t&f)
0:(t&f)
0:(t&(t&f))
1:(t&(t&t))
-
0:f
0:f
0:f
0:f
0:(t&(f|f))
1:(t&(f|t))
1:(t&t)
1:(t&t)
-
0:(f|f)
0:(f|f)
0:(f|(t&f))
1:(f|(t&t))
1:t
1:t
1:t
1:t
-
0:(f|(f|f))
1:(f|(f|t))
1:(f|t)
1:(f|t)
1:t
1:t
1:t
1:t";

            CompileAndVerifyWithCSharp(source: source, expectedOutput: output);
        }

        [Fact]
        public void BooleanOperation_NestedOperators2()
        {
            // Analogue to OperatorTests.TestUserDefinedLogicalOperators2.

            string source = @"
using System;

class C
{
    static void Main()
    {
        dynamic f = new S(0, 'f');
        dynamic t = new S(1, 't');
        Console.Write((f && f) && f ? 1 : 0);
        Console.Write((f && f) && t ? 1 : 0);
        Console.Write((f && t) && f ? 1 : 0);
        Console.Write((f && t) && t ? 1 : 0);
        Console.Write((t && f) && f ? 1 : 0);
        Console.Write((t && f) && t ? 1 : 0);
        Console.Write((t && t) && f ? 1 : 0);
        Console.Write((t && t) && t ? 1 : 0);
        Console.WriteLine('-');
        Console.Write((f && f) || f ? 1 : 0);
        Console.Write((f && f) || t ? 1 : 0);
        Console.Write((f && t) || f ? 1 : 0);
        Console.Write((f && t) || t ? 1 : 0);
        Console.Write((t && f) || f ? 1 : 0);
        Console.Write((t && f) || t ? 1 : 0);
        Console.Write((t && t) || f ? 1 : 0);
        Console.Write((t && t) || t ? 1 : 0);
        Console.WriteLine('-');
        Console.Write((f || f) && f ? 1 : 0);
        Console.Write((f || f) && t ? 1 : 0);
        Console.Write((f || t) && f ? 1 : 0);
        Console.Write((f || t) && t ? 1 : 0);
        Console.Write((t || f) && f ? 1 : 0);
        Console.Write((t || f) && t ? 1 : 0);
        Console.Write((t || t) && f ? 1 : 0);
        Console.Write((t || t) && t ? 1 : 0);
        Console.WriteLine('-');
        Console.Write((f || f) || f ? 1 : 0);
        Console.Write((f || f) || t ? 1 : 0);
        Console.Write((f || t) || f ? 1 : 0);
        Console.Write((f || t) || t ? 1 : 0);
        Console.Write((t || f) || f ? 1 : 0);
        Console.Write((t || f) || t ? 1 : 0);
        Console.Write((t || t) || f ? 1 : 0);
        Console.Write((t || t) || t ? 1 : 0);
        Console.WriteLine('-');       
        Console.Write(f && (f && f) ? 1 : 0);
        Console.Write(f && (f && t) ? 1 : 0);
        Console.Write(f && (t && f) ? 1 : 0);
        Console.Write(f && (t && t) ? 1 : 0);
        Console.Write(t && (f && f) ? 1 : 0);
        Console.Write(t && (f && t) ? 1 : 0);
        Console.Write(t && (t && f) ? 1 : 0);
        Console.Write(t && (t && t) ? 1 : 0);
        Console.WriteLine('-');      
        Console.Write(f && (f || f) ? 1 : 0);
        Console.Write(f && (f || t) ? 1 : 0);
        Console.Write(f && (t || f) ? 1 : 0);
        Console.Write(f && (t || t) ? 1 : 0);
        Console.Write(t && (f || f) ? 1 : 0);
        Console.Write(t && (f || t) ? 1 : 0);
        Console.Write(t && (t || f) ? 1 : 0);
        Console.Write(t && (t || t) ? 1 : 0);
        Console.WriteLine('-');        
        Console.Write(f || (f && f) ? 1 : 0);
        Console.Write(f || (f && t) ? 1 : 0);
        Console.Write(f || (t && f) ? 1 : 0);
        Console.Write(f || (t && t) ? 1 : 0);
        Console.Write(t || (f && f) ? 1 : 0);
        Console.Write(t || (f && t) ? 1 : 0);
        Console.Write(t || (t && f) ? 1 : 0);
        Console.Write(t || (t && t) ? 1 : 0);
        Console.WriteLine('-');        
        Console.Write(f || (f || f) ? 1 : 0);
        Console.Write(f || (f || t) ? 1 : 0);
        Console.Write(f || (t || f) ? 1 : 0);
        Console.Write(f || (t || t) ? 1 : 0);
        Console.Write(t || (f || f) ? 1 : 0);
        Console.Write(t || (f || t) ? 1 : 0);
        Console.Write(t || (t || f) ? 1 : 0);
        Console.Write(t || (t || t) ? 1 : 0);
    }
}
" + StructWithUserDefinedBooleanOperators;

            string output = @"
00000001-
01010111-
00010101-
01111111-
00000001-
00000111-
00011111-
01111111";

            CompileAndVerifyWithCSharp(source: source, expectedOutput: output);
        }

        [Fact]
        public void BooleanOperation_EvaluationOrder()
        {
            string source = @"
public class C
{
    public static dynamic f(ref dynamic d) 
    {
        d = false;
        return d;
    }
    
    public static void Main()
    {
        dynamic d = true;

        if (d || f(ref d))
        {
            return;
        }
        else
        {
            throw null;
        }
    }
}
";
            CompileAndVerifyWithCSharp(source, expectedOutput: "");
        }

        [Fact]
        public void Multiplication_CompoundAssignment()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d *= d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       87 (0x57)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   69
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  dup
  IL_0054:  starg.s    V_1
  IL_0056:  ret
}
");
        }

        [Fact]
        public void Multiplication_CompoundAssignment_Checked()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return checked(d *= d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       87 (0x57)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.1
  IL_0008:  ldc.i4.s   69
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  dup
  IL_0054:  starg.s    V_1
  IL_0056:  ret
}
");
        }

        [Fact]
        public void Multiplication_CompoundAssignment_DiscardResult()
        {
            string source = @"
public class C
{
    public void M(dynamic d)
    {
        d *= d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       86 (0x56)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   69
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.1
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  starg.s    V_1
  IL_0055:  ret
}
");
        }

        [Fact]
        public void Addition_CompoundAssignment()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d, dynamic v)
    {
        return d += v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       87 (0x57)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003d
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   63
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.2
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  dup
  IL_0025:  ldc.i4.1
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldarg.1
  IL_004d:  ldarg.2
  IL_004e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0053:  dup
  IL_0054:  starg.s    V_1
  IL_0056:  ret
}
");
        }

        [Fact]
        public void Addition_EventHandler_SimpleConversion()
        {
            string source = @"
public class C
{    
    event System.Action e;
    dynamic v;

    public void M()
    {
        e += v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       76 (0x4c)
  .maxstack  4
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__4.<>p__0""
  IL_0006:  brtrue.s   IL_002c
  IL_0008:  ldc.i4.0
  IL_0009:  ldtoken    ""System.Action""
  IL_000e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0027:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__4.<>p__0""
  IL_002c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__4.<>p__0""
  IL_0031:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>>.Target""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>> C.<>o__4.<>p__0""
  IL_003b:  ldarg.0
  IL_003c:  ldfld      ""dynamic C.v""
  IL_0041:  callvirt   ""System.Action System.Func<System.Runtime.CompilerServices.CallSite, object, System.Action>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0046:  call       ""void C.e.add""
  IL_004b:  ret
}");
        }

        [Fact]
        public void PostIncrement()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d++;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       78 (0x4e)
  .maxstack  8
  .locals init (object V_0)
  IL_0000:  ldarg.1
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0007:  brtrue.s   IL_0035
  IL_0009:  ldc.i4.0
  IL_000a:  ldc.i4.s   54
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.1
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0030:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_003a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0044:  ldloc.0
  IL_0045:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_004a:  starg.s    V_1
  IL_004c:  ldloc.0
  IL_004d:  ret
}");
        }

        [Fact]
        public void PostDecrement()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d--;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       78 (0x4e)
  .maxstack  8
  .locals init (object V_0)
  IL_0000:  ldarg.1
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0007:  brtrue.s   IL_0035
  IL_0009:  ldc.i4.0
  IL_000a:  ldc.i4.s   49
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.1
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0030:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_003a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0044:  ldloc.0
  IL_0045:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_004a:  starg.s    V_1
  IL_004c:  ldloc.0
  IL_004d:  ret
}");
        }

        [Fact]
        public void PreIncrement()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return ++d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       76 (0x4c)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   54
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldarg.1
  IL_0043:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0048:  dup
  IL_0049:  starg.s    V_1
  IL_004b:  ret
}");
        }

        [Fact]
        public void PreDecrement()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return --d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       76 (0x4c)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0033
  IL_0007:  ldc.i4.0
  IL_0008:  ldc.i4.s   49
  IL_000a:  ldtoken    ""C""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldc.i4.1
  IL_0015:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001a:  dup
  IL_001b:  ldc.i4.0
  IL_001c:  ldc.i4.0
  IL_001d:  ldnull
  IL_001e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0023:  stelem.ref
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0029:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0033:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0038:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0042:  ldarg.1
  IL_0043:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0048:  dup
  IL_0049:  starg.s    V_1
  IL_004b:  ret
}
");
        }

        [Fact]
        public void PostIncrement_DynamicArrayElementAccess()
        {
            string source = @"
public class C
{
    static dynamic[] d;
        
    static void M()
    {
        d[0]++;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  10
  .locals init (object V_0)
  IL_0000:  ldsfld     ""dynamic[] C.d""
  IL_0005:  dup
  IL_0006:  ldc.i4.0
  IL_0007:  ldelem.ref
  IL_0008:  stloc.0
  IL_0009:  ldc.i4.0
  IL_000a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_000f:  brtrue.s   IL_003d
  IL_0011:  ldc.i4.0
  IL_0012:  ldc.i4.s   54
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.1
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_004c:  ldloc.0
  IL_004d:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0052:  stelem.ref
  IL_0053:  ret
}");
        }

        [Fact]
        public void PreIncrement_DynamicArrayElementAccess()
        {
            string source = @"
public class C
{
    static dynamic[] d;
        
    static void M()
    {
        ++d[0];
    }
}
";
            // TODO (tomat): IL_0050 ... IL_0053 and V_1 could be optimized away
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       86 (0x56)
  .maxstack  8
  .locals init (object[] V_0,
                object V_1)
  IL_0000:  ldsfld     ""dynamic[] C.d""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_000b:  brtrue.s   IL_0039
  IL_000d:  ldc.i4.0
  IL_000e:  ldc.i4.s   54
  IL_0010:  ldtoken    ""C""
  IL_0015:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001a:  ldc.i4.1
  IL_001b:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0020:  dup
  IL_0021:  ldc.i4.0
  IL_0022:  ldc.i4.0
  IL_0023:  ldnull
  IL_0024:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0029:  stelem.ref
  IL_002a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0034:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_0039:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_003e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0043:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_0048:  ldloc.0
  IL_0049:  ldc.i4.0
  IL_004a:  ldelem.ref
  IL_004b:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0050:  stloc.1
  IL_0051:  ldloc.0
  IL_0052:  ldc.i4.0
  IL_0053:  ldloc.1
  IL_0054:  stelem.ref
  IL_0055:  ret
}");
        }

        [Fact]
        public void PreIncrement_DynamicMemberAccess()
        {
            string source = @"
class C
{
    dynamic d = null;

    dynamic M()
    {   
        return ++d.P;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      243 (0xf3)
  .maxstack  10
  .locals init (object V_0,
                object V_1)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_000c:  brtrue.s   IL_003a
  IL_000e:  ldc.i4.0
  IL_000f:  ldc.i4.s   54
  IL_0011:  ldtoken    ""C""
  IL_0016:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001b:  ldc.i4.1
  IL_001c:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0021:  dup
  IL_0022:  ldc.i4.0
  IL_0023:  ldc.i4.0
  IL_0024:  ldnull
  IL_0025:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002a:  stelem.ref
  IL_002b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0030:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0035:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_003a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_003f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0044:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_0049:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_004e:  brtrue.s   IL_007f
  IL_0050:  ldc.i4.0
  IL_0051:  ldstr      ""P""
  IL_0056:  ldtoken    ""C""
  IL_005b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0060:  ldc.i4.1
  IL_0061:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0066:  dup
  IL_0067:  ldc.i4.0
  IL_0068:  ldc.i4.0
  IL_0069:  ldnull
  IL_006a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006f:  stelem.ref
  IL_0070:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0075:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_007f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_0084:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0089:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_008e:  ldloc.0
  IL_008f:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0094:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0099:  stloc.1
  IL_009a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_009f:  brtrue.s   IL_00da
  IL_00a1:  ldc.i4.0
  IL_00a2:  ldstr      ""P""
  IL_00a7:  ldtoken    ""C""
  IL_00ac:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00b1:  ldc.i4.2
  IL_00b2:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00b7:  dup
  IL_00b8:  ldc.i4.0
  IL_00b9:  ldc.i4.0
  IL_00ba:  ldnull
  IL_00bb:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c0:  stelem.ref
  IL_00c1:  dup
  IL_00c2:  ldc.i4.1
  IL_00c3:  ldc.i4.0
  IL_00c4:  ldnull
  IL_00c5:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ca:  stelem.ref
  IL_00cb:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00d0:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d5:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_00da:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_00df:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00e4:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_00e9:  ldloc.0
  IL_00ea:  ldloc.1
  IL_00eb:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00f0:  pop
  IL_00f1:  ldloc.1
  IL_00f2:  ret
}
");
        }

        [Fact]
        public void PostIncrement_DynamicMemberAccess()
        {
            string source = @"
class C
{
    dynamic d = null;

    dynamic M()
    {   
        return d.P++;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      243 (0xf3)
  .maxstack  11
  .locals init (object V_0,
                object V_1)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_000c:  brtrue.s   IL_003d
  IL_000e:  ldc.i4.0
  IL_000f:  ldstr      ""P""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.1
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__1""
  IL_004c:  ldloc.0
  IL_004d:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0052:  stloc.1
  IL_0053:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_0058:  brtrue.s   IL_0093
  IL_005a:  ldc.i4.0
  IL_005b:  ldstr      ""P""
  IL_0060:  ldtoken    ""C""
  IL_0065:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_006a:  ldc.i4.2
  IL_006b:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0070:  dup
  IL_0071:  ldc.i4.0
  IL_0072:  ldc.i4.0
  IL_0073:  ldnull
  IL_0074:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0079:  stelem.ref
  IL_007a:  dup
  IL_007b:  ldc.i4.1
  IL_007c:  ldc.i4.0
  IL_007d:  ldnull
  IL_007e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0083:  stelem.ref
  IL_0084:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0089:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_008e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_0093:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_0098:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_009d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_00a2:  ldloc.0
  IL_00a3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_00a8:  brtrue.s   IL_00d6
  IL_00aa:  ldc.i4.0
  IL_00ab:  ldc.i4.s   54
  IL_00ad:  ldtoken    ""C""
  IL_00b2:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00b7:  ldc.i4.1
  IL_00b8:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00bd:  dup
  IL_00be:  ldc.i4.0
  IL_00bf:  ldc.i4.0
  IL_00c0:  ldnull
  IL_00c1:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c6:  stelem.ref
  IL_00c7:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00cc:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d1:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_00d6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_00db:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_00e0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_00e5:  ldloc.1
  IL_00e6:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00eb:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00f0:  pop
  IL_00f1:  ldloc.1
  IL_00f2:  ret
}

");
        }

        [Fact]
        public void PreIncrement_DynamicIndexerAccess()
        {
            string source = @"
class C
{
    dynamic d = null;

    int F() { return 0; }

    dynamic M()
    {   
        return ++d[F()];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      262 (0x106)
  .maxstack  9
  .locals init (object V_0,
                int V_1,
                object V_2)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldarg.0
  IL_0008:  call       ""int C.F()""
  IL_000d:  stloc.1
  IL_000e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__1""
  IL_0013:  brtrue.s   IL_0041
  IL_0015:  ldc.i4.0
  IL_0016:  ldc.i4.s   54
  IL_0018:  ldtoken    ""C""
  IL_001d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0022:  ldc.i4.1
  IL_0023:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0028:  dup
  IL_0029:  ldc.i4.0
  IL_002a:  ldc.i4.0
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__1""
  IL_0041:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__1""
  IL_0046:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__1""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__0""
  IL_0055:  brtrue.s   IL_008b
  IL_0057:  ldc.i4.0
  IL_0058:  ldtoken    ""C""
  IL_005d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0062:  ldc.i4.2
  IL_0063:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0068:  dup
  IL_0069:  ldc.i4.0
  IL_006a:  ldc.i4.0
  IL_006b:  ldnull
  IL_006c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0071:  stelem.ref
  IL_0072:  dup
  IL_0073:  ldc.i4.1
  IL_0074:  ldc.i4.1
  IL_0075:  ldnull
  IL_0076:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007b:  stelem.ref
  IL_007c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0081:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0086:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__0""
  IL_008b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__0""
  IL_0090:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0095:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__0""
  IL_009a:  ldloc.0
  IL_009b:  ldloc.1
  IL_009c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_00a1:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00a6:  stloc.2
  IL_00a7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_00ac:  brtrue.s   IL_00ec
  IL_00ae:  ldc.i4.0
  IL_00af:  ldtoken    ""C""
  IL_00b4:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00b9:  ldc.i4.3
  IL_00ba:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00bf:  dup
  IL_00c0:  ldc.i4.0
  IL_00c1:  ldc.i4.0
  IL_00c2:  ldnull
  IL_00c3:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c8:  stelem.ref
  IL_00c9:  dup
  IL_00ca:  ldc.i4.1
  IL_00cb:  ldc.i4.1
  IL_00cc:  ldnull
  IL_00cd:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00d2:  stelem.ref
  IL_00d3:  dup
  IL_00d4:  ldc.i4.2
  IL_00d5:  ldc.i4.0
  IL_00d6:  ldnull
  IL_00d7:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00dc:  stelem.ref
  IL_00dd:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00e2:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00e7:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_00ec:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_00f1:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>>.Target""
  IL_00f6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_00fb:  ldloc.0
  IL_00fc:  ldloc.1
  IL_00fd:  ldloc.2
  IL_00fe:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, object)""
  IL_0103:  pop
  IL_0104:  ldloc.2
  IL_0105:  ret
}");
        }

        [Fact]
        public void PostIncrement_DynamicIndexerAccess()
        {
            string source = @"
class C
{
    dynamic d = null;

    int F() { return 0; }

    dynamic M()
    {   
        return d[F()]++;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      262 (0x106)
  .maxstack  12
  .locals init (object V_0,
                int V_1,
                object V_2)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldarg.0
  IL_0008:  call       ""int C.F()""
  IL_000d:  stloc.1
  IL_000e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__1""
  IL_0013:  brtrue.s   IL_0049
  IL_0015:  ldc.i4.0
  IL_0016:  ldtoken    ""C""
  IL_001b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0020:  ldc.i4.2
  IL_0021:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0026:  dup
  IL_0027:  ldc.i4.0
  IL_0028:  ldc.i4.0
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.1
  IL_0032:  ldc.i4.1
  IL_0033:  ldnull
  IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0039:  stelem.ref
  IL_003a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0044:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__1""
  IL_0049:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__1""
  IL_004e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0053:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__1""
  IL_0058:  ldloc.0
  IL_0059:  ldloc.1
  IL_005a:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_005f:  stloc.2
  IL_0060:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_0065:  brtrue.s   IL_00a5
  IL_0067:  ldc.i4.0
  IL_0068:  ldtoken    ""C""
  IL_006d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0072:  ldc.i4.3
  IL_0073:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0078:  dup
  IL_0079:  ldc.i4.0
  IL_007a:  ldc.i4.0
  IL_007b:  ldnull
  IL_007c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0081:  stelem.ref
  IL_0082:  dup
  IL_0083:  ldc.i4.1
  IL_0084:  ldc.i4.1
  IL_0085:  ldnull
  IL_0086:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008b:  stelem.ref
  IL_008c:  dup
  IL_008d:  ldc.i4.2
  IL_008e:  ldc.i4.0
  IL_008f:  ldnull
  IL_0090:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0095:  stelem.ref
  IL_0096:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_009b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00a0:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_00a5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_00aa:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>>.Target""
  IL_00af:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__2.<>p__2""
  IL_00b4:  ldloc.0
  IL_00b5:  ldloc.1
  IL_00b6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00bb:  brtrue.s   IL_00e9
  IL_00bd:  ldc.i4.0
  IL_00be:  ldc.i4.s   54
  IL_00c0:  ldtoken    ""C""
  IL_00c5:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00ca:  ldc.i4.1
  IL_00cb:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00d0:  dup
  IL_00d1:  ldc.i4.0
  IL_00d2:  ldc.i4.0
  IL_00d3:  ldnull
  IL_00d4:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00d9:  stelem.ref
  IL_00da:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00df:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00e4:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00e9:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00ee:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_00f3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00f8:  ldloc.2
  IL_00f9:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00fe:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, object)""
  IL_0103:  pop
  IL_0104:  ldloc.2
  IL_0105:  ret
}");
        }

        [Fact]
        public void NullCoalescing()
        {
            string source = @"
class C
{
    dynamic d = null;
    object o = null;

    void M()
    {
        var x = d ?? o;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       16 (0x10)
  .maxstack  1
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  brtrue.s   IL_000f
  IL_0008:  ldarg.0
  IL_0009:  ldfld      ""object C.o""
  IL_000e:  pop
  IL_000f:  ret
}
");
        }

        #endregion

        #region Invoke, InvokeMember, InvokeConstructor

        [Fact]
        public void InvokeMember_Dynamic()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.m(null, this, d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      110 (0x6e)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0055
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""m""
  IL_000d:  ldnull
  IL_000e:  ldtoken    ""C""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldc.i4.4
  IL_0019:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001e:  dup
  IL_001f:  ldc.i4.0
  IL_0020:  ldc.i4.0
  IL_0021:  ldnull
  IL_0022:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0027:  stelem.ref
  IL_0028:  dup
  IL_0029:  ldc.i4.1
  IL_002a:  ldc.i4.2
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  dup
  IL_0033:  ldc.i4.2
  IL_0034:  ldc.i4.1
  IL_0035:  ldnull
  IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003b:  stelem.ref
  IL_003c:  dup
  IL_003d:  ldc.i4.3
  IL_003e:  ldc.i4.0
  IL_003f:  ldnull
  IL_0040:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0045:  stelem.ref
  IL_0046:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_004b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0050:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>> C.<>o__0.<>p__0""
  IL_005a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>>.Target""
  IL_005f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0064:  ldarg.1
  IL_0065:  ldnull
  IL_0066:  ldarg.0
  IL_0067:  ldarg.1
  IL_0068:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, C, object)""
  IL_006d:  ret
}
");
        }

        [Fact]
        public void InvokeMember_Static()
        {
            string source = @"
public class C
{
    public dynamic M(C c, dynamic d)
    {
        return c.F(null, this, d);
    }

    public int F(C a, C b, double c) 
    {
        return 1; 
    }
    public int F(C a, C b, string c) 
    {
        return 1; 
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      110 (0x6e)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0055
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""F""
  IL_000d:  ldnull
  IL_000e:  ldtoken    ""C""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldc.i4.4
  IL_0019:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001e:  dup
  IL_001f:  ldc.i4.0
  IL_0020:  ldc.i4.1
  IL_0021:  ldnull
  IL_0022:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0027:  stelem.ref
  IL_0028:  dup
  IL_0029:  ldc.i4.1
  IL_002a:  ldc.i4.2
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  dup
  IL_0033:  ldc.i4.2
  IL_0034:  ldc.i4.1
  IL_0035:  ldnull
  IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003b:  stelem.ref
  IL_003c:  dup
  IL_003d:  ldc.i4.3
  IL_003e:  ldc.i4.0
  IL_003f:  ldnull
  IL_0040:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0045:  stelem.ref
  IL_0046:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_004b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0050:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_005a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>>.Target""
  IL_005f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0064:  ldarg.1
  IL_0065:  ldnull
  IL_0066:  ldarg.0
  IL_0067:  ldarg.2
  IL_0068:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object, C, object)""
  IL_006d:  ret
}
");
        }

        [Fact]
        public void InvokeMember_Static_SimpleName()
        {
            string source = @"
public class C
{
    public dynamic M(C c, dynamic d)
    {
        return F(null, this, d);
    }

    public int F(C a, C b, double c) 
    {
        return 1; 
    }
    public int F(C a, C b, string c) 
    {
        return 1; 
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      110 (0x6e)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0055
  IL_0007:  ldc.i4.2
  IL_0008:  ldstr      ""F""
  IL_000d:  ldnull
  IL_000e:  ldtoken    ""C""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldc.i4.4
  IL_0019:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001e:  dup
  IL_001f:  ldc.i4.0
  IL_0020:  ldc.i4.1
  IL_0021:  ldnull
  IL_0022:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0027:  stelem.ref
  IL_0028:  dup
  IL_0029:  ldc.i4.1
  IL_002a:  ldc.i4.2
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  dup
  IL_0033:  ldc.i4.2
  IL_0034:  ldc.i4.1
  IL_0035:  ldnull
  IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003b:  stelem.ref
  IL_003c:  dup
  IL_003d:  ldc.i4.3
  IL_003e:  ldc.i4.0
  IL_003f:  ldnull
  IL_0040:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0045:  stelem.ref
  IL_0046:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_004b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0050:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_005a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>>.Target""
  IL_005f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0064:  ldarg.0
  IL_0065:  ldnull
  IL_0066:  ldarg.0
  IL_0067:  ldarg.2
  IL_0068:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object, C, object)""
  IL_006d:  ret
}
");
        }

        [Fact]
        public void InvokeMember_Static_ResultDiscarded()
        {
            string source = @"
public class C
{
    public void M(C c, dynamic d)
    {
        F(null, this, d);
    }

    public int F(C a, C b, double c) 
    {
        return 1; 
    }
    public int F(C a, C b, string c) 
    {
        return 1; 
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      114 (0x72)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0059
  IL_0007:  ldc.i4     0x102
  IL_000c:  ldstr      ""F""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.4
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.2
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  dup
  IL_0037:  ldc.i4.2
  IL_0038:  ldc.i4.1
  IL_0039:  ldnull
  IL_003a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003f:  stelem.ref
  IL_0040:  dup
  IL_0041:  ldc.i4.3
  IL_0042:  ldc.i4.0
  IL_0043:  ldnull
  IL_0044:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0049:  stelem.ref
  IL_004a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_004f:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0054:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>> C.<>o__0.<>p__0""
  IL_0059:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>> C.<>o__0.<>p__0""
  IL_005e:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>>.Target""
  IL_0063:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>> C.<>o__0.<>p__0""
  IL_0068:  ldarg.0
  IL_0069:  ldnull
  IL_006a:  ldarg.0
  IL_006b:  ldarg.2
  IL_006c:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, C, object, C, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object, C, object)""
  IL_0071:  ret
}
");
        }

        [Fact]
        [WorkItem(622532, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/622532")]
        public void InvokeMember_Static_Outer()
        {
            string source = @"
using System;

public class A
{
    public static void M(int x) { }
    public static void M(double x) { }
  
    public class B
    {
        public void F()
        {
            dynamic d = null;
            M(d);
        }
    } 
}";
            // Dev11 passes "this" to the site, which is wrong.
            CompileAndVerifyIL(source, "A.B.F", @"
{
  // Code size      104 (0x68)
  .maxstack  9
  .locals init (object V_0) //d
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_0007:  brtrue.s   IL_0048
  IL_0009:  ldc.i4     0x100
  IL_000e:  ldstr      ""M""
  IL_0013:  ldnull
  IL_0014:  ldtoken    ""A.B""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.2
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.s   33
  IL_0028:  ldnull
  IL_0029:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002e:  stelem.ref
  IL_002f:  dup
  IL_0030:  ldc.i4.1
  IL_0031:  ldc.i4.0
  IL_0032:  ldnull
  IL_0033:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0038:  stelem.ref
  IL_0039:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003e:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0043:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_0048:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_004d:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_0052:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_0057:  ldtoken    ""A""
  IL_005c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0061:  ldloc.0
  IL_0062:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_0067:  ret
}
");
        }

        [Fact]
        [WorkItem(622532, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/622532")]
        public void InvokeMember_Static_Outer_AmbiguousAtRuntime()
        {
            string source = @"
using System;

public class A
{
    public static void M(A x) { }
    public static void M(double x) { }
    public void M(string x) { }
  
    public class B
    {
        public void F()
        {
            dynamic d = null;
            M(d);
        }
    }  
    
    public static void Main() 
    {
        System.Globalization.CultureInfo saveUICulture = System.Threading.Thread.CurrentThread.CurrentUICulture;
        System.Threading.Thread.CurrentThread.CurrentUICulture = System.Globalization.CultureInfo.InvariantCulture;

        try 
        {
            new A.B().F();
        }
        catch (Microsoft.CSharp.RuntimeBinder.RuntimeBinderException e)
        {
            System.Console.WriteLine(e.Message);
        }
        finally
        {
            System.Threading.Thread.CurrentThread.CurrentUICulture = saveUICulture;
        }
    }
}";
            // Dev11 passes "this" to the site, which is wrong.
            CompileAndVerifyIL(source, "A.B.F", @"
{
  // Code size      104 (0x68)
  .maxstack  9
  .locals init (object V_0) //d
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_0007:  brtrue.s   IL_0048
  IL_0009:  ldc.i4     0x100
  IL_000e:  ldstr      ""M""
  IL_0013:  ldnull
  IL_0014:  ldtoken    ""A.B""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.2
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.s   33
  IL_0028:  ldnull
  IL_0029:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002e:  stelem.ref
  IL_002f:  dup
  IL_0030:  ldc.i4.1
  IL_0031:  ldc.i4.0
  IL_0032:  ldnull
  IL_0033:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0038:  stelem.ref
  IL_0039:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003e:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0043:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_0048:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_004d:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_0052:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> A.B.<>o__0.<>p__0""
  IL_0057:  ldtoken    ""A""
  IL_005c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0061:  ldloc.0
  IL_0062:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_0067:  ret
}");

            CompileAndVerifyWithCSharp(source,
                expectedOutput: "The call is ambiguous between the following methods or properties: 'A.M(A)' and 'A.M(string)'");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_StaticContext_StaticProperty()
        {
            string source = @"
public class Color
{
    public static void M1(string s) { }
    public static void M1(int s) { }
    
    public static void M2(string s) { }
    public static void M2(double s) { }
    public void M2(int s) { }
    public void M2(int s, int q) { }
  
    public void M3(int s) { }
    public void M3(string s) { }
    public static void M3(int s, int q) { }
}

public class C
{
    public static Color Color { get; set; }
    
    public static void F(dynamic d)
    {
        Color.M1(d); 
        Color.M2(d); 
        Color.M3(d);
    }
}                    
";
            CompileAndVerifyIL(source, "C.F", @"
{
  // Code size      286 (0x11e)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""M1""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0054:  call       ""Color C.Color.get""
  IL_0059:  ldarg.0
  IL_005a:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_005f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_0064:  brtrue.s   IL_00a4
  IL_0066:  ldc.i4     0x100
  IL_006b:  ldstr      ""M2""
  IL_0070:  ldnull
  IL_0071:  ldtoken    ""C""
  IL_0076:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_007b:  ldc.i4.2
  IL_007c:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0081:  dup
  IL_0082:  ldc.i4.0
  IL_0083:  ldc.i4.1
  IL_0084:  ldnull
  IL_0085:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008a:  stelem.ref
  IL_008b:  dup
  IL_008c:  ldc.i4.1
  IL_008d:  ldc.i4.0
  IL_008e:  ldnull
  IL_008f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0094:  stelem.ref
  IL_0095:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_009a:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_009f:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00a4:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00a9:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_00ae:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00b3:  call       ""Color C.Color.get""
  IL_00b8:  ldarg.0
  IL_00b9:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_00be:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_00c3:  brtrue.s   IL_0103
  IL_00c5:  ldc.i4     0x100
  IL_00ca:  ldstr      ""M3""
  IL_00cf:  ldnull
  IL_00d0:  ldtoken    ""C""
  IL_00d5:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00da:  ldc.i4.2
  IL_00db:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00e0:  dup
  IL_00e1:  ldc.i4.0
  IL_00e2:  ldc.i4.1
  IL_00e3:  ldnull
  IL_00e4:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00e9:  stelem.ref
  IL_00ea:  dup
  IL_00eb:  ldc.i4.1
  IL_00ec:  ldc.i4.0
  IL_00ed:  ldnull
  IL_00ee:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00f3:  stelem.ref
  IL_00f4:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00f9:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00fe:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0103:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0108:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_010d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0112:  call       ""Color C.Color.get""
  IL_0117:  ldarg.0
  IL_0118:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_011d:  ret
}
");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_StaticContext_InstanceProperty()
        {
            string source = @"
public class Color
{
    public static void M1(string s) { }
    public static void M1(int s) { }
    
    public static void M2(string s) { }
    public static void M2(double s) { }
    public void M2(int s) { }
    public void M2(int s, int q) { }
  
    public void M3(int s) { }
    public void M3(string s) { }
    public static void M3(int s, int q) { }
}

public class C
{
    public Color Color { get; set; }
    
    public static void F(dynamic d)
    {
        Color.M1(d);
        Color.M2(d);
        Color.M3(d);   // Dev11 crashes on this one
    }
}                    
";
            CompileAndVerifyIL(source, "C.F", @"
{
  // Code size      304 (0x130)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""M1""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   33
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__0""
  IL_004b:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__0""
  IL_0055:  ldtoken    ""Color""
  IL_005a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005f:  ldarg.0
  IL_0060:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_0065:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__1""
  IL_006a:  brtrue.s   IL_00ab
  IL_006c:  ldc.i4     0x100
  IL_0071:  ldstr      ""M2""
  IL_0076:  ldnull
  IL_0077:  ldtoken    ""C""
  IL_007c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0081:  ldc.i4.2
  IL_0082:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0087:  dup
  IL_0088:  ldc.i4.0
  IL_0089:  ldc.i4.s   33
  IL_008b:  ldnull
  IL_008c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0091:  stelem.ref
  IL_0092:  dup
  IL_0093:  ldc.i4.1
  IL_0094:  ldc.i4.0
  IL_0095:  ldnull
  IL_0096:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_009b:  stelem.ref
  IL_009c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00a1:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00a6:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__1""
  IL_00ab:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__1""
  IL_00b0:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_00b5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__1""
  IL_00ba:  ldtoken    ""Color""
  IL_00bf:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00c4:  ldarg.0
  IL_00c5:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_00ca:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__2""
  IL_00cf:  brtrue.s   IL_0110
  IL_00d1:  ldc.i4     0x100
  IL_00d6:  ldstr      ""M3""
  IL_00db:  ldnull
  IL_00dc:  ldtoken    ""C""
  IL_00e1:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00e6:  ldc.i4.2
  IL_00e7:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00ec:  dup
  IL_00ed:  ldc.i4.0
  IL_00ee:  ldc.i4.s   33
  IL_00f0:  ldnull
  IL_00f1:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00f6:  stelem.ref
  IL_00f7:  dup
  IL_00f8:  ldc.i4.1
  IL_00f9:  ldc.i4.0
  IL_00fa:  ldnull
  IL_00fb:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0100:  stelem.ref
  IL_0101:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0106:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_010b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__2""
  IL_0110:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__2""
  IL_0115:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_011a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__4.<>p__2""
  IL_011f:  ldtoken    ""Color""
  IL_0124:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0129:  ldarg.0
  IL_012a:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_012f:  ret
}
");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_StaticContext_Parameter()
        {
            string source = @"
public class Color
{
    public static void M1(string s) { }
    public static void M1(int s) { }
    
    public static void M2(string s) { }
    public static void M2(double s) { }
    public void M2(int s) { }
    public void M2(int s, int q) { }
  
    public void M3(int s) { }
    public void M3(string s) { }
    public static void M3(int s, int q) { }
}

public class C
{
    public static void F(Color Color, dynamic d)
    {
        Color.M1(d);
        Color.M2(d);
        Color.M3(d);   // Dev11 crashes on this one
    }
}                    
";
            CompileAndVerifyIL(source, "C.F", @"
{
  // Code size      274 (0x112)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""M1""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_0054:  ldarg.0
  IL_0055:  ldarg.1
  IL_0056:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_005b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_0060:  brtrue.s   IL_00a0
  IL_0062:  ldc.i4     0x100
  IL_0067:  ldstr      ""M2""
  IL_006c:  ldnull
  IL_006d:  ldtoken    ""C""
  IL_0072:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0077:  ldc.i4.2
  IL_0078:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_007d:  dup
  IL_007e:  ldc.i4.0
  IL_007f:  ldc.i4.1
  IL_0080:  ldnull
  IL_0081:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0086:  stelem.ref
  IL_0087:  dup
  IL_0088:  ldc.i4.1
  IL_0089:  ldc.i4.0
  IL_008a:  ldnull
  IL_008b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0090:  stelem.ref
  IL_0091:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0096:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_009b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_00a0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_00a5:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_00aa:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_00af:  ldarg.0
  IL_00b0:  ldarg.1
  IL_00b1:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_00b6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_00bb:  brtrue.s   IL_00fb
  IL_00bd:  ldc.i4     0x100
  IL_00c2:  ldstr      ""M3""
  IL_00c7:  ldnull
  IL_00c8:  ldtoken    ""C""
  IL_00cd:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00d2:  ldc.i4.2
  IL_00d3:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00d8:  dup
  IL_00d9:  ldc.i4.0
  IL_00da:  ldc.i4.1
  IL_00db:  ldnull
  IL_00dc:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00e1:  stelem.ref
  IL_00e2:  dup
  IL_00e3:  ldc.i4.1
  IL_00e4:  ldc.i4.0
  IL_00e5:  ldnull
  IL_00e6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00eb:  stelem.ref
  IL_00ec:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00f1:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00f6:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_00fb:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_0100:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_0105:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_010a:  ldarg.0
  IL_010b:  ldarg.1
  IL_010c:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_0111:  ret
}
");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_InstanceContext_StaticProperty()
        {
            string source = @"
public class Color
{
    public static void M1(string s) { }
    public static void M1(int s) { }
    
    public static void M2(string s) { }
    public static void M2(double s) { }
    public void M2(int s) { }
    public void M2(int s, int q) { }
  
    public void M3(int s) { }
    public void M3(string s) { }
    public static void M3(int s, int q) { }
}

public class C
{
    public static Color Color { get; set; }
    
    public void F(dynamic d)
    {
        Color.M1(d);
        Color.M2(d);
        Color.M3(d);
    }
}                    
";
            CompileAndVerifyIL(source, "C.F", @"
{
  // Code size      286 (0x11e)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""M1""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0054:  call       ""Color C.Color.get""
  IL_0059:  ldarg.1
  IL_005a:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_005f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_0064:  brtrue.s   IL_00a4
  IL_0066:  ldc.i4     0x100
  IL_006b:  ldstr      ""M2""
  IL_0070:  ldnull
  IL_0071:  ldtoken    ""C""
  IL_0076:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_007b:  ldc.i4.2
  IL_007c:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0081:  dup
  IL_0082:  ldc.i4.0
  IL_0083:  ldc.i4.1
  IL_0084:  ldnull
  IL_0085:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008a:  stelem.ref
  IL_008b:  dup
  IL_008c:  ldc.i4.1
  IL_008d:  ldc.i4.0
  IL_008e:  ldnull
  IL_008f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0094:  stelem.ref
  IL_0095:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_009a:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_009f:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00a4:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00a9:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_00ae:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00b3:  call       ""Color C.Color.get""
  IL_00b8:  ldarg.1
  IL_00b9:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_00be:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_00c3:  brtrue.s   IL_0103
  IL_00c5:  ldc.i4     0x100
  IL_00ca:  ldstr      ""M3""
  IL_00cf:  ldnull
  IL_00d0:  ldtoken    ""C""
  IL_00d5:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00da:  ldc.i4.2
  IL_00db:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00e0:  dup
  IL_00e1:  ldc.i4.0
  IL_00e2:  ldc.i4.1
  IL_00e3:  ldnull
  IL_00e4:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00e9:  stelem.ref
  IL_00ea:  dup
  IL_00eb:  ldc.i4.1
  IL_00ec:  ldc.i4.0
  IL_00ed:  ldnull
  IL_00ee:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00f3:  stelem.ref
  IL_00f4:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00f9:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00fe:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0103:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0108:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_010d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0112:  call       ""Color C.Color.get""
  IL_0117:  ldarg.1
  IL_0118:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_011d:  ret
}
");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_InstanceContext_Parameter()
        {
            string source = @"
public class Color
{
    public static void M1(string s) { }
    public static void M1(int s) { }
    
    public static void M2(string s) { }
    public static void M2(double s) { }
    public void M2(int s) { }
    public void M2(int s, int q) { }
  
    public void M3(int s) { }
    public void M3(string s) { }
    public static void M3(int s, int q) { }
}

public class C
{
    public void F(Color Color, dynamic d)
    {
        Color.M1(d);
        Color.M2(d);
        Color.M3(d);
    }
}                    
";
            CompileAndVerifyIL(source, "C.F", @"
{
  // Code size      274 (0x112)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""M1""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__0""
  IL_0054:  ldarg.1
  IL_0055:  ldarg.2
  IL_0056:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_005b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_0060:  brtrue.s   IL_00a0
  IL_0062:  ldc.i4     0x100
  IL_0067:  ldstr      ""M2""
  IL_006c:  ldnull
  IL_006d:  ldtoken    ""C""
  IL_0072:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0077:  ldc.i4.2
  IL_0078:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_007d:  dup
  IL_007e:  ldc.i4.0
  IL_007f:  ldc.i4.1
  IL_0080:  ldnull
  IL_0081:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0086:  stelem.ref
  IL_0087:  dup
  IL_0088:  ldc.i4.1
  IL_0089:  ldc.i4.0
  IL_008a:  ldnull
  IL_008b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0090:  stelem.ref
  IL_0091:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0096:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_009b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_00a0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_00a5:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_00aa:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__1""
  IL_00af:  ldarg.1
  IL_00b0:  ldarg.2
  IL_00b1:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_00b6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_00bb:  brtrue.s   IL_00fb
  IL_00bd:  ldc.i4     0x100
  IL_00c2:  ldstr      ""M3""
  IL_00c7:  ldnull
  IL_00c8:  ldtoken    ""C""
  IL_00cd:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00d2:  ldc.i4.2
  IL_00d3:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00d8:  dup
  IL_00d9:  ldc.i4.0
  IL_00da:  ldc.i4.1
  IL_00db:  ldnull
  IL_00dc:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00e1:  stelem.ref
  IL_00e2:  dup
  IL_00e3:  ldc.i4.1
  IL_00e4:  ldc.i4.0
  IL_00e5:  ldnull
  IL_00e6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00eb:  stelem.ref
  IL_00ec:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00f1:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00f6:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_00fb:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_0100:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_0105:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__0.<>p__2""
  IL_010a:  ldarg.1
  IL_010b:  ldarg.2
  IL_010c:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_0111:  ret
}
");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_InstanceContext_InstanceProperty()
        {
            string source = @"
public class Color
{
    public static void M1(string s) { }
    public static void M1(int s) { }
    
    public static void M2(string s) { }
    public static void M2(double s) { }
    public void M2(int s) { }
    public void M2(int s, int q) { }
  
    public void M3(int s) { }
    public void M3(string s) { }
    public static void M3(int s, int q) { }
}

public class C
{
    public Color Color { get; set; }
    
    public void F(dynamic d)
    {
        Color.M1(d);
        Color.M2(d);
        Color.M3(d);
    }
}                    
";
            CompileAndVerifyIL(source, "C.F", @"
{
  // Code size      289 (0x121)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""M1""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__0""
  IL_0054:  ldarg.0
  IL_0055:  call       ""Color C.Color.get""
  IL_005a:  ldarg.1
  IL_005b:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_0060:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_0065:  brtrue.s   IL_00a5
  IL_0067:  ldc.i4     0x100
  IL_006c:  ldstr      ""M2""
  IL_0071:  ldnull
  IL_0072:  ldtoken    ""C""
  IL_0077:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_007c:  ldc.i4.2
  IL_007d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0082:  dup
  IL_0083:  ldc.i4.0
  IL_0084:  ldc.i4.1
  IL_0085:  ldnull
  IL_0086:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008b:  stelem.ref
  IL_008c:  dup
  IL_008d:  ldc.i4.1
  IL_008e:  ldc.i4.0
  IL_008f:  ldnull
  IL_0090:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0095:  stelem.ref
  IL_0096:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_009b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00a0:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00a5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00aa:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_00af:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__1""
  IL_00b4:  ldarg.0
  IL_00b5:  call       ""Color C.Color.get""
  IL_00ba:  ldarg.1
  IL_00bb:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_00c0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_00c5:  brtrue.s   IL_0105
  IL_00c7:  ldc.i4     0x100
  IL_00cc:  ldstr      ""M3""
  IL_00d1:  ldnull
  IL_00d2:  ldtoken    ""C""
  IL_00d7:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00dc:  ldc.i4.2
  IL_00dd:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00e2:  dup
  IL_00e3:  ldc.i4.0
  IL_00e4:  ldc.i4.1
  IL_00e5:  ldnull
  IL_00e6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00eb:  stelem.ref
  IL_00ec:  dup
  IL_00ed:  ldc.i4.1
  IL_00ee:  ldc.i4.0
  IL_00ef:  ldnull
  IL_00f0:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00f5:  stelem.ref
  IL_00f6:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00fb:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0100:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0105:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_010a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, Color, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>>.Target""
  IL_010f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, Color, object>> C.<>o__4.<>p__2""
  IL_0114:  ldarg.0
  IL_0115:  call       ""Color C.Color.get""
  IL_011a:  ldarg.1
  IL_011b:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, Color, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_0120:  ret
}");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_InFieldInitializer()
        {
            string source = @"
public class Color
{
	public int F(int a) { return 1; } 
	public int F(long a) { return 1; } 
}

public class C
{
	Color Color;
	dynamic x = Color.F((dynamic)1);
}
";
            CompileAndVerifyIL(source, "C..ctor", @"
{
  // Code size      115 (0x73)
  .maxstack  10
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__2.<>p__0""
  IL_0006:  brtrue.s   IL_0043
  IL_0008:  ldc.i4.0
  IL_0009:  ldstr      ""F""
  IL_000e:  ldnull
  IL_000f:  ldtoken    ""C""
  IL_0014:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0019:  ldc.i4.2
  IL_001a:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001f:  dup
  IL_0020:  ldc.i4.0
  IL_0021:  ldc.i4.s   33
  IL_0023:  ldnull
  IL_0024:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0029:  stelem.ref
  IL_002a:  dup
  IL_002b:  ldc.i4.1
  IL_002c:  ldc.i4.0
  IL_002d:  ldnull
  IL_002e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0033:  stelem.ref
  IL_0034:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0039:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003e:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__2.<>p__0""
  IL_0043:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__2.<>p__0""
  IL_0048:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>>.Target""
  IL_004d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__2.<>p__0""
  IL_0052:  ldtoken    ""Color""
  IL_0057:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005c:  ldc.i4.1
  IL_005d:  box        ""int""
  IL_0062:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_0067:  stfld      ""dynamic C.x""
  IL_006c:  ldarg.0
  IL_006d:  call       ""object..ctor()""
  IL_0072:  ret
}
");
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_InScriptVariableInitializer()
        {
            var sourceLib = @"
public class Color
{
	public int F(int a) { return 1; } 
	public int F(long a) { return 1; } 
}
";
            var lib = CreateCompilation(sourceLib);

            string sourceScript = @"
Color Color;
dynamic x = Color.F((dynamic)1);
";
            var script = CreateCompilationWithMscorlib461(
                new[] { Parse(sourceScript, options: TestOptions.Script) },
                new[] { new CSharpCompilationReference(lib), SystemCoreRef, CSharpRef });

            var verifier = CompileAndVerify(script);
            verifier.VerifyIL("<<Initialize>>d__0.System.Runtime.CompilerServices.IAsyncStateMachine.MoveNext()",
@"{
  // Code size      158 (0x9e)
  .maxstack  10
  .locals init (Script V_0,
                object V_1,
                System.Exception V_2)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""Script Script.<<Initialize>>d__0.<>4__this""
  IL_0006:  stloc.0
  .try
  {
    IL_0007:  ldloc.0
    IL_0008:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__0.<>p__0""
    IL_000d:  brtrue.s   IL_0049
    IL_000f:  ldc.i4.0
    IL_0010:  ldstr      ""F""
    IL_0015:  ldnull
    IL_0016:  ldtoken    ""Script""
    IL_001b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_0020:  ldc.i4.2
    IL_0021:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_0026:  dup
    IL_0027:  ldc.i4.0
    IL_0028:  ldc.i4.1
    IL_0029:  ldnull
    IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_002f:  stelem.ref
    IL_0030:  dup
    IL_0031:  ldc.i4.1
    IL_0032:  ldc.i4.0
    IL_0033:  ldnull
    IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_0039:  stelem.ref
    IL_003a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_003f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0044:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__0.<>p__0""
    IL_0049:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__0.<>p__0""
    IL_004e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>>.Target""
    IL_0053:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__0.<>p__0""
    IL_0058:  ldloc.0
    IL_0059:  ldfld      ""Color Script.Color""
    IL_005e:  ldc.i4.1
    IL_005f:  box        ""int""
    IL_0064:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
    IL_0069:  stfld      ""dynamic Script.x""
    IL_006e:  ldnull
    IL_006f:  stloc.1
    IL_0070:  leave.s    IL_0089
  }
  catch System.Exception
  {
    IL_0072:  stloc.2
    IL_0073:  ldarg.0
    IL_0074:  ldc.i4.s   -2
    IL_0076:  stfld      ""int Script.<<Initialize>>d__0.<>1__state""
    IL_007b:  ldarg.0
    IL_007c:  ldflda     ""System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object> Script.<<Initialize>>d__0.<>t__builder""
    IL_0081:  ldloc.2
    IL_0082:  call       ""void System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object>.SetException(System.Exception)""
    IL_0087:  leave.s    IL_009d
  }
  IL_0089:  ldarg.0
  IL_008a:  ldc.i4.s   -2
  IL_008c:  stfld      ""int Script.<<Initialize>>d__0.<>1__state""
  IL_0091:  ldarg.0
  IL_0092:  ldflda     ""System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object> Script.<<Initialize>>d__0.<>t__builder""
  IL_0097:  ldloc.1
  IL_0098:  call       ""void System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object>.SetResult(object)""
  IL_009d:  ret
}", realIL: true);
        }

        [Fact, WorkItem(649805, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/649805")]
        public void InvokeMember_ColorColor_InScriptMethod()
        {
            var sourceLib = @"
public class Color
{
	public int F(int a) { return 1; } 
	public int F(long a) { return 1; } 
}
";
            var lib = CreateCompilation(sourceLib);

            string sourceScript = @"
Color Color;

void Goo() 
{
    dynamic x = Color.F((dynamic)1);
}
";
            var script = CreateCompilationWithMscorlib461(
                new[] { Parse(sourceScript, options: TestOptions.Script) },
                new[] { new CSharpCompilationReference(lib), SystemCoreRef, CSharpRef },
                TestOptions.ReleaseDll.WithMetadataImportOptions(MetadataImportOptions.All));

            CompileAndVerify(script).VerifyIL("Goo", @"
{
  // Code size       99 (0x63)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__2.<>p__0""
  IL_0005:  brtrue.s   IL_0041
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""F""
  IL_000d:  ldnull
  IL_000e:  ldtoken    ""Script""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldc.i4.2
  IL_0019:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001e:  dup
  IL_001f:  ldc.i4.0
  IL_0020:  ldc.i4.1
  IL_0021:  ldnull
  IL_0022:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0027:  stelem.ref
  IL_0028:  dup
  IL_0029:  ldc.i4.1
  IL_002a:  ldc.i4.0
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__2.<>p__0""
  IL_0041:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__2.<>p__0""
  IL_0046:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>>.Target""
  IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>> Script.<>o__2.<>p__0""
  IL_0050:  ldarg.0
  IL_0051:  ldfld      ""Color Script.Color""
  IL_0056:  ldc.i4.1
  IL_0057:  box        ""int""
  IL_005c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, Color, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, Color, object)""
  IL_0061:  pop
  IL_0062:  ret
}
", realIL: true);
        }

        [Fact]
        public void InvokeMember_UseCompileTimeType()
        {
            string source = @"
class C
{
    static char? nChar = null;
    static char Char = '\0';
    static C c = new C();
    static object obj = null;	
    static dynamic d = new C();

    static void M()
    {
        d.f(nChar);
        d.f(Char);        
        d.f(c);         
        d.f(obj);           
        d.f(d);  
        d.f(null);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      591 (0x24f)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char?>> C.<>o__5.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""f""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.1
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char?>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char?>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char?>> C.<>o__5.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char?>> C.<>o__5.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, char?> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char?>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char?>> C.<>o__5.<>p__0""
  IL_0054:  ldsfld     ""dynamic C.d""
  IL_0059:  ldsfld     ""char? C.nChar""
  IL_005e:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, char?>.Invoke(System.Runtime.CompilerServices.CallSite, object, char?)""
  IL_0063:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char>> C.<>o__5.<>p__1""
  IL_0068:  brtrue.s   IL_00a8
  IL_006a:  ldc.i4     0x100
  IL_006f:  ldstr      ""f""
  IL_0074:  ldnull
  IL_0075:  ldtoken    ""C""
  IL_007a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_007f:  ldc.i4.2
  IL_0080:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0085:  dup
  IL_0086:  ldc.i4.0
  IL_0087:  ldc.i4.0
  IL_0088:  ldnull
  IL_0089:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008e:  stelem.ref
  IL_008f:  dup
  IL_0090:  ldc.i4.1
  IL_0091:  ldc.i4.1
  IL_0092:  ldnull
  IL_0093:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0098:  stelem.ref
  IL_0099:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_009e:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00a3:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char>> C.<>o__5.<>p__1""
  IL_00a8:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char>> C.<>o__5.<>p__1""
  IL_00ad:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, char> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char>>.Target""
  IL_00b2:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, char>> C.<>o__5.<>p__1""
  IL_00b7:  ldsfld     ""dynamic C.d""
  IL_00bc:  ldsfld     ""char C.Char""
  IL_00c1:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, char>.Invoke(System.Runtime.CompilerServices.CallSite, object, char)""
  IL_00c6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__5.<>p__2""
  IL_00cb:  brtrue.s   IL_010b
  IL_00cd:  ldc.i4     0x100
  IL_00d2:  ldstr      ""f""
  IL_00d7:  ldnull
  IL_00d8:  ldtoken    ""C""
  IL_00dd:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00e2:  ldc.i4.2
  IL_00e3:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00e8:  dup
  IL_00e9:  ldc.i4.0
  IL_00ea:  ldc.i4.0
  IL_00eb:  ldnull
  IL_00ec:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00f1:  stelem.ref
  IL_00f2:  dup
  IL_00f3:  ldc.i4.1
  IL_00f4:  ldc.i4.1
  IL_00f5:  ldnull
  IL_00f6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00fb:  stelem.ref
  IL_00fc:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0101:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, C>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, C>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0106:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__5.<>p__2""
  IL_010b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__5.<>p__2""
  IL_0110:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, C> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, C>>.Target""
  IL_0115:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__5.<>p__2""
  IL_011a:  ldsfld     ""dynamic C.d""
  IL_011f:  ldsfld     ""C C.c""
  IL_0124:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, C>.Invoke(System.Runtime.CompilerServices.CallSite, object, C)""
  IL_0129:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__3""
  IL_012e:  brtrue.s   IL_016e
  IL_0130:  ldc.i4     0x100
  IL_0135:  ldstr      ""f""
  IL_013a:  ldnull
  IL_013b:  ldtoken    ""C""
  IL_0140:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0145:  ldc.i4.2
  IL_0146:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_014b:  dup
  IL_014c:  ldc.i4.0
  IL_014d:  ldc.i4.0
  IL_014e:  ldnull
  IL_014f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0154:  stelem.ref
  IL_0155:  dup
  IL_0156:  ldc.i4.1
  IL_0157:  ldc.i4.1
  IL_0158:  ldnull
  IL_0159:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_015e:  stelem.ref
  IL_015f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0164:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0169:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__3""
  IL_016e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__3""
  IL_0173:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0178:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__3""
  IL_017d:  ldsfld     ""dynamic C.d""
  IL_0182:  ldsfld     ""object C.obj""
  IL_0187:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_018c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__4""
  IL_0191:  brtrue.s   IL_01d1
  IL_0193:  ldc.i4     0x100
  IL_0198:  ldstr      ""f""
  IL_019d:  ldnull
  IL_019e:  ldtoken    ""C""
  IL_01a3:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_01a8:  ldc.i4.2
  IL_01a9:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_01ae:  dup
  IL_01af:  ldc.i4.0
  IL_01b0:  ldc.i4.0
  IL_01b1:  ldnull
  IL_01b2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_01b7:  stelem.ref
  IL_01b8:  dup
  IL_01b9:  ldc.i4.1
  IL_01ba:  ldc.i4.0
  IL_01bb:  ldnull
  IL_01bc:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_01c1:  stelem.ref
  IL_01c2:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_01c7:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_01cc:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__4""
  IL_01d1:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__4""
  IL_01d6:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_01db:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__4""
  IL_01e0:  ldsfld     ""dynamic C.d""
  IL_01e5:  ldsfld     ""dynamic C.d""
  IL_01ea:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_01ef:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__5""
  IL_01f4:  brtrue.s   IL_0234
  IL_01f6:  ldc.i4     0x100
  IL_01fb:  ldstr      ""f""
  IL_0200:  ldnull
  IL_0201:  ldtoken    ""C""
  IL_0206:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_020b:  ldc.i4.2
  IL_020c:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0211:  dup
  IL_0212:  ldc.i4.0
  IL_0213:  ldc.i4.0
  IL_0214:  ldnull
  IL_0215:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_021a:  stelem.ref
  IL_021b:  dup
  IL_021c:  ldc.i4.1
  IL_021d:  ldc.i4.2
  IL_021e:  ldnull
  IL_021f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0224:  stelem.ref
  IL_0225:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_022a:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_022f:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__5""
  IL_0234:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__5""
  IL_0239:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_023e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__5.<>p__5""
  IL_0243:  ldsfld     ""dynamic C.d""
  IL_0248:  ldnull
  IL_0249:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_024e:  ret
}
");
        }

        [Fact]
        public void InvokeMember_UseCompileTimeType_ConvertedReceiver()
        {
            string source = @"
class C
{
    void M(object o) 
    {
        (o as dynamic).f();
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       81 (0x51)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""f""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.1
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object>> C.<>o__0.<>p__0""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object>> C.<>o__0.<>p__0""
  IL_0040:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object>> C.<>o__0.<>p__0""
  IL_004a:  ldarg.1
  IL_004b:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0050:  ret
}
");
        }

        [Fact]
        public void InvokeMember_Dynamic_Generic()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.m<C, int>(d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      119 (0x77)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0060
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""m""
  IL_000d:  ldc.i4.2
  IL_000e:  newarr     ""System.Type""
  IL_0013:  dup
  IL_0014:  ldc.i4.0
  IL_0015:  ldtoken    ""C""
  IL_001a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001f:  stelem.ref
  IL_0020:  dup
  IL_0021:  ldc.i4.1
  IL_0022:  ldtoken    ""int""
  IL_0027:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_002c:  stelem.ref
  IL_002d:  ldtoken    ""C""
  IL_0032:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0037:  ldc.i4.2
  IL_0038:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_003d:  dup
  IL_003e:  ldc.i4.0
  IL_003f:  ldc.i4.0
  IL_0040:  ldnull
  IL_0041:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0046:  stelem.ref
  IL_0047:  dup
  IL_0048:  ldc.i4.1
  IL_0049:  ldc.i4.0
  IL_004a:  ldnull
  IL_004b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0050:  stelem.ref
  IL_0051:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0056:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_005b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0060:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0065:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_006a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_006f:  ldarg.1
  IL_0070:  ldarg.1
  IL_0071:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0076:  ret
}
");
        }

        [Fact]
        public void InvokeMember_Static_Generic()
        {
            string source = @"
public class C
{
    public dynamic M(C c, dynamic d)
    {
        return c.F<int, dynamic>(null, this, d);
    }

    public int F<T1, T2>(C a, C b, double c) 
    {
        return 1; 
    }
    public int F<T1, T2>(C a, C b, string c) 
    {
        return 1; 
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      141 (0x8d)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0074
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""F""
  IL_000d:  ldc.i4.2
  IL_000e:  newarr     ""System.Type""
  IL_0013:  dup
  IL_0014:  ldc.i4.0
  IL_0015:  ldtoken    ""int""
  IL_001a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001f:  stelem.ref
  IL_0020:  dup
  IL_0021:  ldc.i4.1
  IL_0022:  ldtoken    ""object""
  IL_0027:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_002c:  stelem.ref
  IL_002d:  ldtoken    ""C""
  IL_0032:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0037:  ldc.i4.4
  IL_0038:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_003d:  dup
  IL_003e:  ldc.i4.0
  IL_003f:  ldc.i4.1
  IL_0040:  ldnull
  IL_0041:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0046:  stelem.ref
  IL_0047:  dup
  IL_0048:  ldc.i4.1
  IL_0049:  ldc.i4.2
  IL_004a:  ldnull
  IL_004b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0050:  stelem.ref
  IL_0051:  dup
  IL_0052:  ldc.i4.2
  IL_0053:  ldc.i4.1
  IL_0054:  ldnull
  IL_0055:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005a:  stelem.ref
  IL_005b:  dup
  IL_005c:  ldc.i4.3
  IL_005d:  ldc.i4.0
  IL_005e:  ldnull
  IL_005f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0064:  stelem.ref
  IL_0065:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_006a:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_006f:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0074:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0079:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>>.Target""
  IL_007e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>> C.<>o__0.<>p__0""
  IL_0083:  ldarg.1
  IL_0084:  ldnull
  IL_0085:  ldarg.0
  IL_0086:  ldarg.2
  IL_0087:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, C, object, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object, C, object)""
  IL_008c:  ret
}
");
        }

        [Fact]
        public void InvokeMember_Dynamic_NamedArguments()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d, int a)
    {
        return d.m(goo: d, bar: a, baz: 123);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      123 (0x7b)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0061
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""m""
  IL_000d:  ldnull
  IL_000e:  ldtoken    ""C""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldc.i4.4
  IL_0019:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001e:  dup
  IL_001f:  ldc.i4.0
  IL_0020:  ldc.i4.0
  IL_0021:  ldnull
  IL_0022:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0027:  stelem.ref
  IL_0028:  dup
  IL_0029:  ldc.i4.1
  IL_002a:  ldc.i4.4
  IL_002b:  ldstr      ""goo""
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  dup
  IL_0037:  ldc.i4.2
  IL_0038:  ldc.i4.5
  IL_0039:  ldstr      ""bar""
  IL_003e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0043:  stelem.ref
  IL_0044:  dup
  IL_0045:  ldc.i4.3
  IL_0046:  ldc.i4.7
  IL_0047:  ldstr      ""baz""
  IL_004c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0051:  stelem.ref
  IL_0052:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0057:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_005c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_0061:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_0066:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>>.Target""
  IL_006b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_0070:  ldarg.1
  IL_0071:  ldarg.1
  IL_0072:  ldarg.2
  IL_0073:  ldc.i4.s   123
  IL_0075:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int, int)""
  IL_007a:  ret
}
");
        }

        [Fact]
        [WorkItem(598043, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/598043")]
        public void InvokeMember_NamedArguments_PartialMethods()
        {
            string source = @"
partial class C
{
    static partial void F(int i); 
}

partial class C
{
    static partial void F(int j) { System.Console.WriteLine(j); }

    public static void Main() 
    {
        dynamic d = 2;
        F(i: d);
    }
}
";
            CompileAndVerifyWithCSharp(source, expectedOutput: "2");
        }

        [Fact]
        public void InvokeMember_ManyArgs_F14()
        {
            string source = @"
public class C
{
    public dynamic M14(dynamic d)
    {
        return d.m(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
    }
}";
            CompileAndVerifyIL(source, "C.M14", @"
{
  // Code size      247 (0xf7)
  .maxstack  17
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue     IL_00cd
  IL_000a:  ldc.i4.0
  IL_000b:  ldstr      ""m""
  IL_0010:  ldnull
  IL_0011:  ldtoken    ""C""
  IL_0016:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001b:  ldc.i4.s   15
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.3
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  dup
  IL_0037:  ldc.i4.2
  IL_0038:  ldc.i4.3
  IL_0039:  ldnull
  IL_003a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003f:  stelem.ref
  IL_0040:  dup
  IL_0041:  ldc.i4.3
  IL_0042:  ldc.i4.3
  IL_0043:  ldnull
  IL_0044:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0049:  stelem.ref
  IL_004a:  dup
  IL_004b:  ldc.i4.4
  IL_004c:  ldc.i4.3
  IL_004d:  ldnull
  IL_004e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0053:  stelem.ref
  IL_0054:  dup
  IL_0055:  ldc.i4.5
  IL_0056:  ldc.i4.3
  IL_0057:  ldnull
  IL_0058:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005d:  stelem.ref
  IL_005e:  dup
  IL_005f:  ldc.i4.6
  IL_0060:  ldc.i4.3
  IL_0061:  ldnull
  IL_0062:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0067:  stelem.ref
  IL_0068:  dup
  IL_0069:  ldc.i4.7
  IL_006a:  ldc.i4.3
  IL_006b:  ldnull
  IL_006c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0071:  stelem.ref
  IL_0072:  dup
  IL_0073:  ldc.i4.8
  IL_0074:  ldc.i4.3
  IL_0075:  ldnull
  IL_0076:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007b:  stelem.ref
  IL_007c:  dup
  IL_007d:  ldc.i4.s   9
  IL_007f:  ldc.i4.3
  IL_0080:  ldnull
  IL_0081:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0086:  stelem.ref
  IL_0087:  dup
  IL_0088:  ldc.i4.s   10
  IL_008a:  ldc.i4.3
  IL_008b:  ldnull
  IL_008c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0091:  stelem.ref
  IL_0092:  dup
  IL_0093:  ldc.i4.s   11
  IL_0095:  ldc.i4.3
  IL_0096:  ldnull
  IL_0097:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_009c:  stelem.ref
  IL_009d:  dup
  IL_009e:  ldc.i4.s   12
  IL_00a0:  ldc.i4.3
  IL_00a1:  ldnull
  IL_00a2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00a7:  stelem.ref
  IL_00a8:  dup
  IL_00a9:  ldc.i4.s   13
  IL_00ab:  ldc.i4.3
  IL_00ac:  ldnull
  IL_00ad:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b2:  stelem.ref
  IL_00b3:  dup
  IL_00b4:  ldc.i4.s   14
  IL_00b6:  ldc.i4.3
  IL_00b7:  ldnull
  IL_00b8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00bd:  stelem.ref
  IL_00be:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00c3:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00c8:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_00cd:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_00d2:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>>.Target""
  IL_00d7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_00dc:  ldarg.1
  IL_00dd:  ldc.i4.1
  IL_00de:  ldc.i4.2
  IL_00df:  ldc.i4.3
  IL_00e0:  ldc.i4.4
  IL_00e1:  ldc.i4.5
  IL_00e2:  ldc.i4.6
  IL_00e3:  ldc.i4.7
  IL_00e4:  ldc.i4.8
  IL_00e5:  ldc.i4.s   9
  IL_00e7:  ldc.i4.s   10
  IL_00e9:  ldc.i4.s   11
  IL_00eb:  ldc.i4.s   12
  IL_00ed:  ldc.i4.s   13
  IL_00ef:  ldc.i4.s   14
  IL_00f1:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int)""
  IL_00f6:  ret
}");
        }

        [Fact]
        public void InvokeMember_ManyArgs_F15()
        {
            // TODO: verify metadata of the synthesized delegate
            // TODO: use VerifyRealIL to check that dynamic is erased

            string source = @"
public class C
{
    public dynamic M15(dynamic d)
    {
        return d.m(1, true, 1.0, 'c', ""s"", 
                   (byte)1, (sbyte)1, (uint)1, (long)1, (ulong)1, 
                   (float)1.0, (decimal)1, default(System.DateTime), d, d);
    }
}";
            CompileAndVerifyIL(source, "C.M15", @"
{
  // Code size      284 (0x11c)
  .maxstack  18
  .locals init (System.DateTime V_0)
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue     IL_00d8
  IL_000a:  ldc.i4.0
  IL_000b:  ldstr      ""m""
  IL_0010:  ldnull
  IL_0011:  ldtoken    ""C""
  IL_0016:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001b:  ldc.i4.s   16
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.3
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  dup
  IL_0037:  ldc.i4.2
  IL_0038:  ldc.i4.3
  IL_0039:  ldnull
  IL_003a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003f:  stelem.ref
  IL_0040:  dup
  IL_0041:  ldc.i4.3
  IL_0042:  ldc.i4.3
  IL_0043:  ldnull
  IL_0044:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0049:  stelem.ref
  IL_004a:  dup
  IL_004b:  ldc.i4.4
  IL_004c:  ldc.i4.3
  IL_004d:  ldnull
  IL_004e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0053:  stelem.ref
  IL_0054:  dup
  IL_0055:  ldc.i4.5
  IL_0056:  ldc.i4.3
  IL_0057:  ldnull
  IL_0058:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005d:  stelem.ref
  IL_005e:  dup
  IL_005f:  ldc.i4.6
  IL_0060:  ldc.i4.3
  IL_0061:  ldnull
  IL_0062:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0067:  stelem.ref
  IL_0068:  dup
  IL_0069:  ldc.i4.7
  IL_006a:  ldc.i4.3
  IL_006b:  ldnull
  IL_006c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0071:  stelem.ref
  IL_0072:  dup
  IL_0073:  ldc.i4.8
  IL_0074:  ldc.i4.3
  IL_0075:  ldnull
  IL_0076:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007b:  stelem.ref
  IL_007c:  dup
  IL_007d:  ldc.i4.s   9
  IL_007f:  ldc.i4.3
  IL_0080:  ldnull
  IL_0081:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0086:  stelem.ref
  IL_0087:  dup
  IL_0088:  ldc.i4.s   10
  IL_008a:  ldc.i4.3
  IL_008b:  ldnull
  IL_008c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0091:  stelem.ref
  IL_0092:  dup
  IL_0093:  ldc.i4.s   11
  IL_0095:  ldc.i4.3
  IL_0096:  ldnull
  IL_0097:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_009c:  stelem.ref
  IL_009d:  dup
  IL_009e:  ldc.i4.s   12
  IL_00a0:  ldc.i4.3
  IL_00a1:  ldnull
  IL_00a2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00a7:  stelem.ref
  IL_00a8:  dup
  IL_00a9:  ldc.i4.s   13
  IL_00ab:  ldc.i4.1
  IL_00ac:  ldnull
  IL_00ad:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b2:  stelem.ref
  IL_00b3:  dup
  IL_00b4:  ldc.i4.s   14
  IL_00b6:  ldc.i4.0
  IL_00b7:  ldnull
  IL_00b8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00bd:  stelem.ref
  IL_00be:  dup
  IL_00bf:  ldc.i4.s   15
  IL_00c1:  ldc.i4.0
  IL_00c2:  ldnull
  IL_00c3:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c8:  stelem.ref
  IL_00c9:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00ce:  call       ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>> System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d3:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>> C.<>o__0.<>p__0""
  IL_00d8:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>> C.<>o__0.<>p__0""
  IL_00dd:  ldfld      ""<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object> System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>>.Target""
  IL_00e2:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>> C.<>o__0.<>p__0""
  IL_00e7:  ldarg.1
  IL_00e8:  ldc.i4.1
  IL_00e9:  ldc.i4.1
  IL_00ea:  ldc.r8     1
  IL_00f3:  ldc.i4.s   99
  IL_00f5:  ldstr      ""s""
  IL_00fa:  ldc.i4.1
  IL_00fb:  ldc.i4.1
  IL_00fc:  ldc.i4.1
  IL_00fd:  ldc.i4.1
  IL_00fe:  conv.i8
  IL_00ff:  ldc.i4.1
  IL_0100:  conv.i8
  IL_0101:  ldc.r4     1
  IL_0106:  ldsfld     ""decimal decimal.One""
  IL_010b:  ldloca.s   V_0
  IL_010d:  initobj    ""System.DateTime""
  IL_0113:  ldloc.0
  IL_0114:  ldarg.1
  IL_0115:  ldarg.1
  IL_0116:  callvirt   ""object <>F<System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, bool, double, char, string, byte, sbyte, uint, long, ulong, float, decimal, System.DateTime, object, object)""
  IL_011b:  ret
}
"
                );
        }

        [Fact]
        public void InvokeMember_ManyArgs_A14()
        {
            string source = @"
public class C
{
    public void M14(dynamic d)
    {
        d.m(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14);
    }
}";
            CompileAndVerifyIL(source, "C.M14", @"
{
  // Code size      251 (0xfb)
  .maxstack  17
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_0005:  brtrue     IL_00d1
  IL_000a:  ldc.i4     0x100
  IL_000f:  ldstr      ""m""
  IL_0014:  ldnull
  IL_0015:  ldtoken    ""C""
  IL_001a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001f:  ldc.i4.s   15
  IL_0021:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0026:  dup
  IL_0027:  ldc.i4.0
  IL_0028:  ldc.i4.0
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.1
  IL_0032:  ldc.i4.3
  IL_0033:  ldnull
  IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0039:  stelem.ref
  IL_003a:  dup
  IL_003b:  ldc.i4.2
  IL_003c:  ldc.i4.3
  IL_003d:  ldnull
  IL_003e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0043:  stelem.ref
  IL_0044:  dup
  IL_0045:  ldc.i4.3
  IL_0046:  ldc.i4.3
  IL_0047:  ldnull
  IL_0048:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004d:  stelem.ref
  IL_004e:  dup
  IL_004f:  ldc.i4.4
  IL_0050:  ldc.i4.3
  IL_0051:  ldnull
  IL_0052:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0057:  stelem.ref
  IL_0058:  dup
  IL_0059:  ldc.i4.5
  IL_005a:  ldc.i4.3
  IL_005b:  ldnull
  IL_005c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0061:  stelem.ref
  IL_0062:  dup
  IL_0063:  ldc.i4.6
  IL_0064:  ldc.i4.3
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  dup
  IL_006d:  ldc.i4.7
  IL_006e:  ldc.i4.3
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  dup
  IL_0077:  ldc.i4.8
  IL_0078:  ldc.i4.3
  IL_0079:  ldnull
  IL_007a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007f:  stelem.ref
  IL_0080:  dup
  IL_0081:  ldc.i4.s   9
  IL_0083:  ldc.i4.3
  IL_0084:  ldnull
  IL_0085:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008a:  stelem.ref
  IL_008b:  dup
  IL_008c:  ldc.i4.s   10
  IL_008e:  ldc.i4.3
  IL_008f:  ldnull
  IL_0090:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0095:  stelem.ref
  IL_0096:  dup
  IL_0097:  ldc.i4.s   11
  IL_0099:  ldc.i4.3
  IL_009a:  ldnull
  IL_009b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00a0:  stelem.ref
  IL_00a1:  dup
  IL_00a2:  ldc.i4.s   12
  IL_00a4:  ldc.i4.3
  IL_00a5:  ldnull
  IL_00a6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ab:  stelem.ref
  IL_00ac:  dup
  IL_00ad:  ldc.i4.s   13
  IL_00af:  ldc.i4.3
  IL_00b0:  ldnull
  IL_00b1:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b6:  stelem.ref
  IL_00b7:  dup
  IL_00b8:  ldc.i4.s   14
  IL_00ba:  ldc.i4.3
  IL_00bb:  ldnull
  IL_00bc:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c1:  stelem.ref
  IL_00c2:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00c7:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00cc:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_00d1:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_00d6:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>>.Target""
  IL_00db:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_00e0:  ldarg.1
  IL_00e1:  ldc.i4.1
  IL_00e2:  ldc.i4.2
  IL_00e3:  ldc.i4.3
  IL_00e4:  ldc.i4.4
  IL_00e5:  ldc.i4.5
  IL_00e6:  ldc.i4.6
  IL_00e7:  ldc.i4.7
  IL_00e8:  ldc.i4.8
  IL_00e9:  ldc.i4.s   9
  IL_00eb:  ldc.i4.s   10
  IL_00ed:  ldc.i4.s   11
  IL_00ef:  ldc.i4.s   12
  IL_00f1:  ldc.i4.s   13
  IL_00f3:  ldc.i4.s   14
  IL_00f5:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int)""
  IL_00fa:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ManyArgs_A15()
        {
            string source = @"
public class C
{
    public void M15(dynamic d)
    {
        d.m(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    }
}";
            CompileAndVerifyIL(source, "C.M15", @"
{
  // Code size      264 (0x108)
  .maxstack  18
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_0005:  brtrue     IL_00dc
  IL_000a:  ldc.i4     0x100
  IL_000f:  ldstr      ""m""
  IL_0014:  ldnull
  IL_0015:  ldtoken    ""C""
  IL_001a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001f:  ldc.i4.s   16
  IL_0021:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0026:  dup
  IL_0027:  ldc.i4.0
  IL_0028:  ldc.i4.0
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.1
  IL_0032:  ldc.i4.3
  IL_0033:  ldnull
  IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0039:  stelem.ref
  IL_003a:  dup
  IL_003b:  ldc.i4.2
  IL_003c:  ldc.i4.3
  IL_003d:  ldnull
  IL_003e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0043:  stelem.ref
  IL_0044:  dup
  IL_0045:  ldc.i4.3
  IL_0046:  ldc.i4.3
  IL_0047:  ldnull
  IL_0048:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004d:  stelem.ref
  IL_004e:  dup
  IL_004f:  ldc.i4.4
  IL_0050:  ldc.i4.3
  IL_0051:  ldnull
  IL_0052:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0057:  stelem.ref
  IL_0058:  dup
  IL_0059:  ldc.i4.5
  IL_005a:  ldc.i4.3
  IL_005b:  ldnull
  IL_005c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0061:  stelem.ref
  IL_0062:  dup
  IL_0063:  ldc.i4.6
  IL_0064:  ldc.i4.3
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  dup
  IL_006d:  ldc.i4.7
  IL_006e:  ldc.i4.3
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  dup
  IL_0077:  ldc.i4.8
  IL_0078:  ldc.i4.3
  IL_0079:  ldnull
  IL_007a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007f:  stelem.ref
  IL_0080:  dup
  IL_0081:  ldc.i4.s   9
  IL_0083:  ldc.i4.3
  IL_0084:  ldnull
  IL_0085:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008a:  stelem.ref
  IL_008b:  dup
  IL_008c:  ldc.i4.s   10
  IL_008e:  ldc.i4.3
  IL_008f:  ldnull
  IL_0090:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0095:  stelem.ref
  IL_0096:  dup
  IL_0097:  ldc.i4.s   11
  IL_0099:  ldc.i4.3
  IL_009a:  ldnull
  IL_009b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00a0:  stelem.ref
  IL_00a1:  dup
  IL_00a2:  ldc.i4.s   12
  IL_00a4:  ldc.i4.3
  IL_00a5:  ldnull
  IL_00a6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ab:  stelem.ref
  IL_00ac:  dup
  IL_00ad:  ldc.i4.s   13
  IL_00af:  ldc.i4.3
  IL_00b0:  ldnull
  IL_00b1:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b6:  stelem.ref
  IL_00b7:  dup
  IL_00b8:  ldc.i4.s   14
  IL_00ba:  ldc.i4.3
  IL_00bb:  ldnull
  IL_00bc:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c1:  stelem.ref
  IL_00c2:  dup
  IL_00c3:  ldc.i4.s   15
  IL_00c5:  ldc.i4.3
  IL_00c6:  ldnull
  IL_00c7:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00cc:  stelem.ref
  IL_00cd:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00d2:  call       ""System.Runtime.CompilerServices.CallSite<<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> System.Runtime.CompilerServices.CallSite<<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d7:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_00dc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_00e1:  ldfld      ""<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int> System.Runtime.CompilerServices.CallSite<<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>>.Target""
  IL_00e6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>> C.<>o__0.<>p__0""
  IL_00eb:  ldarg.1
  IL_00ec:  ldc.i4.1
  IL_00ed:  ldc.i4.2
  IL_00ee:  ldc.i4.3
  IL_00ef:  ldc.i4.4
  IL_00f0:  ldc.i4.5
  IL_00f1:  ldc.i4.6
  IL_00f2:  ldc.i4.7
  IL_00f3:  ldc.i4.8
  IL_00f4:  ldc.i4.s   9
  IL_00f6:  ldc.i4.s   10
  IL_00f8:  ldc.i4.s   11
  IL_00fa:  ldc.i4.s   12
  IL_00fc:  ldc.i4.s   13
  IL_00fe:  ldc.i4.s   14
  IL_0100:  ldc.i4.s   15
  IL_0102:  callvirt   ""void <>A<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int)""
  IL_0107:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ByRefArgs()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.m(ref d, out d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      103 (0x67)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_004d
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""m""
  IL_000d:  ldnull
  IL_000e:  ldtoken    ""C""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldc.i4.3
  IL_0019:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001e:  dup
  IL_001f:  ldc.i4.0
  IL_0020:  ldc.i4.0
  IL_0021:  ldnull
  IL_0022:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0027:  stelem.ref
  IL_0028:  dup
  IL_0029:  ldc.i4.1
  IL_002a:  ldc.i4.s   9
  IL_002c:  ldnull
  IL_002d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0032:  stelem.ref
  IL_0033:  dup
  IL_0034:  ldc.i4.2
  IL_0035:  ldc.i4.s   17
  IL_0037:  ldnull
  IL_0038:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003d:  stelem.ref
  IL_003e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0043:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>> System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0048:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_004d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0052:  ldfld      ""<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object> System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Target""
  IL_0057:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_005c:  ldarg.1
  IL_005d:  ldarga.s   V_1
  IL_005f:  ldarga.s   V_1
  IL_0061:  callvirt   ""object <>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, ref object, ref object)""
  IL_0066:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ByRefArgs_Runtime()
        {
            string source = @"
public class C
{
    public static dynamic d = new C();

    public static void Main()
    {
        d.m(ref d, out d);
    }

    public void m(ref object a, out object b) { b = null; }
}
";
            CompileAndVerifyWithCSharp(source, expectedOutput: "");
        }

        /// <summary>
        /// By-ref dynamic argument doesn't make the call dynamic.
        /// </summary>
        [Fact]
        public void InvokeMember_ByRefDynamic()
        {
            string source = @"
public class C
{
    static dynamic d = true;

    public static void f(ref dynamic d) 
    {
    }
    
    public static void M()
    {
        f(ref d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       11 (0xb)
  .maxstack  1
  IL_0000:  ldsflda    ""dynamic C.d""
  IL_0005:  call       ""void C.f(ref dynamic)""
  IL_000a:  ret
}
");
        }

        [Fact]
        [WorkItem("https://github.com/dotnet/roslyn/issues/71399")]
        public void InvokeMember_CallSiteRefOutOmitted_01()
        {
            string source = @"
public class C
{
    dynamic d = true;

    public void f(ref int a, out int b, ref dynamic c, out object d) 
    {
        b = 1;
        d = null;
    }
    
    public void M()
    {
        object lo = null;
        dynamic ld;

        f(d, d, ref lo, out ld);

        f(ref d, out d, ref lo, out ld);
    }

    public void f(ref long a, out int b, ref dynamic c, out object d) 
    {
        b = 1;
        d = null;
    }
}";
            CreateCompilation(source).VerifyDiagnostics(
                // (17,11): error CS1620: Argument 1 must be passed with the 'ref' keyword
                //         f(d, d, ref lo, out ld);
                Diagnostic(ErrorCode.ERR_BadArgRef, "d").WithArguments("1", "ref").WithLocation(17, 11),
                // (17,14): error CS1620: Argument 2 must be passed with the 'out' keyword
                //         f(d, d, ref lo, out ld);
                Diagnostic(ErrorCode.ERR_BadArgRef, "d").WithArguments("2", "out").WithLocation(17, 14),
                // (19,15): error CS1503: Argument 1: cannot convert from 'ref dynamic' to 'ref int'
                //         f(ref d, out d, ref lo, out ld);
                Diagnostic(ErrorCode.ERR_BadArgType, "d").WithArguments("1", "ref dynamic", "ref int").WithLocation(19, 15),
                // (19,22): error CS1503: Argument 2: cannot convert from 'out dynamic' to 'out int'
                //         f(ref d, out d, ref lo, out ld);
                Diagnostic(ErrorCode.ERR_BadArgType, "d").WithArguments("2", "out dynamic", "out int").WithLocation(19, 22)
                );
        }

        [Fact]
        [WorkItem("https://github.com/dotnet/roslyn/issues/71399")]
        public void InvokeMember_CallSiteRefOutOmitted_02()
        {
            string source = @"
using System.Runtime.InteropServices;

[ComImport, Guid(""0002095E-0000-0000-C000-000000000046"")]
public abstract class C1
{
    public abstract void f(ref int a, out dynamic b, ref dynamic c, out object d); 
    public abstract void f(ref bool a, out dynamic b, ref dynamic c, out object d); 
}

public class C
{
    dynamic d = true;

    public void M(C1 c1)
    {
        object lo = null;
        dynamic ld;

        c1.f(d, out d, ref lo, out ld);
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      142 (0x8e)
  .maxstack  9
  .locals init (object V_0, //lo
                object V_1) //ld
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_0007:  brtrue.s   IL_0068
  IL_0009:  ldc.i4     0x100
  IL_000e:  ldstr      ""f""
  IL_0013:  ldnull
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.5
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.1
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  dup
  IL_002f:  ldc.i4.1
  IL_0030:  ldc.i4.0
  IL_0031:  ldnull
  IL_0032:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0037:  stelem.ref
  IL_0038:  dup
  IL_0039:  ldc.i4.2
  IL_003a:  ldc.i4.s   17
  IL_003c:  ldnull
  IL_003d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0042:  stelem.ref
  IL_0043:  dup
  IL_0044:  ldc.i4.3
  IL_0045:  ldc.i4.s   9
  IL_0047:  ldnull
  IL_0048:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004d:  stelem.ref
  IL_004e:  dup
  IL_004f:  ldc.i4.4
  IL_0050:  ldc.i4.s   17
  IL_0052:  ldnull
  IL_0053:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0058:  stelem.ref
  IL_0059:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_005e:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0063:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_0068:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_006d:  ldfld      ""<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object> System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>>.Target""
  IL_0072:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_0077:  ldarg.1
  IL_0078:  ldarg.0
  IL_0079:  ldfld      ""dynamic C.d""
  IL_007e:  ldarg.0
  IL_007f:  ldflda     ""dynamic C.d""
  IL_0084:  ldloca.s   V_0
  IL_0086:  ldloca.s   V_1
  IL_0088:  callvirt   ""void <>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C1, object, ref object, ref object, ref object)""
  IL_008d:  ret
}
").VerifyDiagnostics();
        }

        [Fact]
        [WorkItem("https://github.com/dotnet/roslyn/issues/71399")]
        public void InvokeMember_CallSiteRefOutOmitted_03()
        {
            string source = @"
using System.Runtime.InteropServices;

[ComImport, Guid(""0002095E-0000-0000-C000-000000000046"")]
public abstract class C1
{
    public abstract void f(ref bool a, out dynamic b, ref dynamic c, out object d); 
}

public class C
{
    dynamic d = true;

    public void M(C1 c1)
    {
        object lo = null;
        dynamic ld;

        c1.f(d, out d, ref lo, out ld);
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      142 (0x8e)
  .maxstack  9
  .locals init (object V_0, //lo
                object V_1) //ld
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_0007:  brtrue.s   IL_0068
  IL_0009:  ldc.i4     0x100
  IL_000e:  ldstr      ""f""
  IL_0013:  ldnull
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.5
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.1
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  dup
  IL_002f:  ldc.i4.1
  IL_0030:  ldc.i4.0
  IL_0031:  ldnull
  IL_0032:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0037:  stelem.ref
  IL_0038:  dup
  IL_0039:  ldc.i4.2
  IL_003a:  ldc.i4.s   17
  IL_003c:  ldnull
  IL_003d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0042:  stelem.ref
  IL_0043:  dup
  IL_0044:  ldc.i4.3
  IL_0045:  ldc.i4.s   9
  IL_0047:  ldnull
  IL_0048:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004d:  stelem.ref
  IL_004e:  dup
  IL_004f:  ldc.i4.4
  IL_0050:  ldc.i4.s   17
  IL_0052:  ldnull
  IL_0053:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0058:  stelem.ref
  IL_0059:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_005e:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0063:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_0068:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_006d:  ldfld      ""<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object> System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>>.Target""
  IL_0072:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>> C.<>o__1.<>p__0""
  IL_0077:  ldarg.1
  IL_0078:  ldarg.0
  IL_0079:  ldfld      ""dynamic C.d""
  IL_007e:  ldarg.0
  IL_007f:  ldflda     ""dynamic C.d""
  IL_0084:  ldloca.s   V_0
  IL_0086:  ldloca.s   V_1
  IL_0088:  callvirt   ""void <>A{00009200}<System.Runtime.CompilerServices.CallSite, C1, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C1, object, ref object, ref object, ref object)""
  IL_008d:  ret
}
").VerifyDiagnostics();
        }

        [Fact]
        public void InvokeStaticMember1()
        {
            string source = @"
public class C
{
    public void M(dynamic d)
    {
        D.F(d);
    }
}

public class D
{
    public static void F(int a) {}
    public static void F(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      102 (0x66)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""F""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   33
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_004b:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0055:  ldtoken    ""D""
  IL_005a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005f:  ldarg.1
  IL_0060:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_0065:  ret
}");
        }

        [Fact]
        public void InvokeStaticMember2()
        {
            string source = @"
public class C
{
    static dynamic d = true;

    public static void f(bool d) 
    {
    }
    
    public static void M()
    {
        f(d);
    }

    public static void f(int d) 
    {
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      106 (0x6a)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__2.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""f""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   33
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__2.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__2.<>p__0""
  IL_004b:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__2.<>p__0""
  IL_0055:  ldtoken    ""C""
  IL_005a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005f:  ldsfld     ""dynamic C.d""
  IL_0064:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_0069:  ret
}
");
        }

        [Fact]
        [WorkItem(627091, "http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/627091")]
        public void InvokeStaticMember_InLambda()
        {
            string source = @"
class C
{
    static void Goo(dynamic x)
    {
        System.Action a = () => Goo(x);
    }
    static void Goo(int x)
    {
    }
}
";
            CompileAndVerifyIL(source, "C.<>c__DisplayClass0_0.<Goo>b__0", @"
{
  // Code size      107 (0x6b)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""Goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   33
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_004b:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0055:  ldtoken    ""C""
  IL_005a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005f:  ldarg.0
  IL_0060:  ldfld      ""dynamic C.<>c__DisplayClass0_0.x""
  IL_0065:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_006a:  ret
}");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_Local()
        {
            string source = @"
public class C
{
    public void M(dynamic d) 
    {
        S s = new S();
        s.goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            // Dev11 produces more efficient code, see bug 547265:

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      102 (0x66)
  .maxstack  9
  .locals init (S V_0) //s
  IL_0000:  ldloca.s   V_0
  IL_0002:  initobj    ""S""
  IL_0008:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_000d:  brtrue.s   IL_004e
  IL_000f:  ldc.i4     0x100
  IL_0014:  ldstr      ""goo""
  IL_0019:  ldnull
  IL_001a:  ldtoken    ""C""
  IL_001f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0024:  ldc.i4.2
  IL_0025:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002a:  dup
  IL_002b:  ldc.i4.0
  IL_002c:  ldc.i4.s   9
  IL_002e:  ldnull
  IL_002f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0034:  stelem.ref
  IL_0035:  dup
  IL_0036:  ldc.i4.1
  IL_0037:  ldc.i4.0
  IL_0038:  ldnull
  IL_0039:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003e:  stelem.ref
  IL_003f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0044:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0049:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_004e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0053:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_0058:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_005d:  ldloca.s   V_0
  IL_005f:  ldarg.1
  IL_0060:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_0065:  ret
}");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_Parameter()
        {
            string source = @"
public class C
{
    public void M(S s, dynamic d) 
    {
        s.goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       94 (0x5e)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   9
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_004b:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0055:  ldarga.s   V_1
  IL_0057:  ldarg.2
  IL_0058:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_005d:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_This()
        {
            string source = @"
public struct S
{
    int a;

    public void M(dynamic d) 
    {
        this.Equals(d);
    }

    bool Equals(int i) => false;
}
";
            CompileAndVerifyIL(source, "S.M", @"
{
  // Code size       93 (0x5d)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> S.<>o__1.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""Equals""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""S""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   9
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> S.<>o__1.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> S.<>o__1.<>p__0""
  IL_004b:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> S.<>o__1.<>p__0""
  IL_0055:  ldarg.0
  IL_0056:  ldarg.1
  IL_0057:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_005c:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_FieldAccess()
        {
            string source = @"
public class C
{
    private S s;

    public void M(dynamic d) 
    {
        s.goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       98 (0x62)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   9
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_004b:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0055:  ldarg.0
  IL_0056:  ldflda     ""S C.s""
  IL_005b:  ldarg.1
  IL_005c:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_0061:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_ArrayAccess()
        {
            string source = @"
public class C
{
    private S[] s;

    public void M(dynamic d) 
    {
        s[0].goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      104 (0x68)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0005:  brtrue.s   IL_0046
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.s   9
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_004b:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0055:  ldarg.0
  IL_0056:  ldfld      ""S[] C.s""
  IL_005b:  ldc.i4.0
  IL_005c:  ldelema    ""S""
  IL_0061:  ldarg.1
  IL_0062:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_0067:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_PointerIndirectionOperator1()
        {
            string source = @"
public unsafe class C
{
    private S s;

    public void M(dynamic d) 
    {
        S s = new S();
        S* ptr = &s;
        (*ptr).goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            // Dev11 produces more efficient code, see bug 547265:
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      105 (0x69)
  .maxstack  9
  .locals init (S V_0, //s
                S* V_1) //ptr
  IL_0000:  ldloca.s   V_0
  IL_0002:  initobj    ""S""
  IL_0008:  ldloca.s   V_0
  IL_000a:  conv.u
  IL_000b:  stloc.1
  IL_000c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0011:  brtrue.s   IL_0052
  IL_0013:  ldc.i4     0x100
  IL_0018:  ldstr      ""goo""
  IL_001d:  ldnull
  IL_001e:  ldtoken    ""C""
  IL_0023:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0028:  ldc.i4.2
  IL_0029:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002e:  dup
  IL_002f:  ldc.i4.0
  IL_0030:  ldc.i4.s   9
  IL_0032:  ldnull
  IL_0033:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0038:  stelem.ref
  IL_0039:  dup
  IL_003a:  ldc.i4.1
  IL_003b:  ldc.i4.0
  IL_003c:  ldnull
  IL_003d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0042:  stelem.ref
  IL_0043:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0048:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004d:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0052:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0057:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_005c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0061:  ldloc.1
  IL_0062:  ldarg.1
  IL_0063:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_0068:  ret
}
", allowUnsafe: true, verify: Verification.Fails);
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_PointerIndirectionOperator2()
        {
            string source = @"
public unsafe class C
{
    private S s;

    public void M(dynamic d) 
    {
        S s = new S();
        S* ptr = &s;
        ptr->goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            // Dev11 produces more efficient code, see bug 547265:
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      105 (0x69)
  .maxstack  9
  .locals init (S V_0, //s
                S* V_1) //ptr
  IL_0000:  ldloca.s   V_0
  IL_0002:  initobj    ""S""
  IL_0008:  ldloca.s   V_0
  IL_000a:  conv.u
  IL_000b:  stloc.1
  IL_000c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0011:  brtrue.s   IL_0052
  IL_0013:  ldc.i4     0x100
  IL_0018:  ldstr      ""goo""
  IL_001d:  ldnull
  IL_001e:  ldtoken    ""C""
  IL_0023:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0028:  ldc.i4.2
  IL_0029:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002e:  dup
  IL_002f:  ldc.i4.0
  IL_0030:  ldc.i4.s   9
  IL_0032:  ldnull
  IL_0033:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0038:  stelem.ref
  IL_0039:  dup
  IL_003a:  ldc.i4.1
  IL_003b:  ldc.i4.0
  IL_003c:  ldnull
  IL_003d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0042:  stelem.ref
  IL_0043:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0048:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004d:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0052:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0057:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_005c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0061:  ldloc.1
  IL_0062:  ldarg.1
  IL_0063:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_0068:  ret
}
", allowUnsafe: true, verify: Verification.Fails);
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_PointerElementAccess()
        {
            string source = @"
public unsafe class C
{
    private S s;

    public void M(dynamic d) 
    {
        S* ptr = stackalloc S[2];
        ptr[1].goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            // Dev11 produces more efficient code, see bug 547265:
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      112 (0x70)
  .maxstack  9
  .locals init (S* V_0) //ptr
  IL_0000:  ldc.i4.2
  IL_0001:  conv.u
  IL_0002:  sizeof     ""S""
  IL_0008:  mul.ovf.un
  IL_0009:  localloc
  IL_000b:  stloc.0
  IL_000c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0011:  brtrue.s   IL_0052
  IL_0013:  ldc.i4     0x100
  IL_0018:  ldstr      ""goo""
  IL_001d:  ldnull
  IL_001e:  ldtoken    ""C""
  IL_0023:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0028:  ldc.i4.2
  IL_0029:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002e:  dup
  IL_002f:  ldc.i4.0
  IL_0030:  ldc.i4.s   9
  IL_0032:  ldnull
  IL_0033:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0038:  stelem.ref
  IL_0039:  dup
  IL_003a:  ldc.i4.1
  IL_003b:  ldc.i4.0
  IL_003c:  ldnull
  IL_003d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0042:  stelem.ref
  IL_0043:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0048:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004d:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0052:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0057:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_005c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__1.<>p__0""
  IL_0061:  ldloc.0
  IL_0062:  sizeof     ""S""
  IL_0068:  add
  IL_0069:  ldarg.1
  IL_006a:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object)""
  IL_006f:  ret
}
", allowUnsafe: true, verify: Verification.Fails);
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_TypeReference()
        {
            string source = @"
using System;

public class C
{
    public void M(dynamic d)
    {   
        int a = 1;
        TypedReference tr = __makeref(a);
        __refvalue(tr, int).Equals(d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      108 (0x6c)
  .maxstack  9
  .locals init (int V_0, //a
  System.TypedReference V_1) //tr
  IL_0000:  ldc.i4.1
  IL_0001:  stloc.0
  IL_0002:  ldloca.s   V_0
  IL_0004:  mkrefany   ""int""
  IL_0009:  stloc.1
  IL_000a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>> C.<>o__0.<>p__0""
  IL_000f:  brtrue.s   IL_0050
  IL_0011:  ldc.i4     0x100
  IL_0016:  ldstr      ""Equals""
  IL_001b:  ldnull
  IL_001c:  ldtoken    ""C""
  IL_0021:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0026:  ldc.i4.2
  IL_0027:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002c:  dup
  IL_002d:  ldc.i4.0
  IL_002e:  ldc.i4.s   9
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  dup
  IL_0038:  ldc.i4.1
  IL_0039:  ldc.i4.0
  IL_003a:  ldnull
  IL_003b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0040:  stelem.ref
  IL_0041:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0046:  call       ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004b:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>> C.<>o__0.<>p__0""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>> C.<>o__0.<>p__0""
  IL_0055:  ldfld      ""<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object> System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>>.Target""
  IL_005a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>> C.<>o__0.<>p__0""
  IL_005f:  ldloc.1
  IL_0060:  refanyval  ""int""
  IL_0065:  ldarg.1
  IL_0066:  callvirt   ""void <>A{00000008}<System.Runtime.CompilerServices.CallSite, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref int, object)""
  IL_006b:  ret
}
", verify: Verification.FailsILVerify); // ILVerify doesn't support TypedReference
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_Literal()
        {
            string source = @"
public class C
{
    public void M(dynamic d) 
    {
        ""a"".Equals(d);
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       96 (0x60)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, string, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""Equals""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.3
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, string, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, string, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, string, object>> C.<>o__0.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, string, object>> C.<>o__0.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, string, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, string, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, string, object>> C.<>o__0.<>p__0""
  IL_0054:  ldstr      ""a""
  IL_0059:  ldarg.1
  IL_005a:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, string, object>.Invoke(System.Runtime.CompilerServices.CallSite, string, object)""
  IL_005f:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_Assignment()
        {
            string source = @"
public class C
{
    public void M(dynamic d, S s, S t) 
    {
        (s = t).goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       95 (0x5f)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0054:  ldarg.3
  IL_0055:  dup
  IL_0056:  starg.s    V_2
  IL_0058:  ldarg.1
  IL_0059:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, S, object)""
  IL_005e:  ret
}");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_PropertyAccess()
        {
            string source = @"
public class C
{
    private S P { get; set; }

    public void M(C c, dynamic d) 
    {
        c.P.goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       97 (0x61)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__4.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__4.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__4.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__4.<>p__0""
  IL_0054:  ldarg.1
  IL_0055:  callvirt   ""S C.P.get""
  IL_005a:  ldarg.2
  IL_005b:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, S, object)""
  IL_0060:  ret
}
");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_IndexerAccess()
        {
            string source = @"
public class C
{
    private S this[int index] { get { return new S(); } set { } }

    public void M(C c, dynamic d) 
    {
        c[0].goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       98 (0x62)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__3.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__3.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__3.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__3.<>p__0""
  IL_0054:  ldarg.1
  IL_0055:  ldc.i4.0
  IL_0056:  callvirt   ""S C.this[int].get""
  IL_005b:  ldarg.2
  IL_005c:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, S, object)""
  IL_0061:  ret
}");
        }

        [Fact]
        public void InvokeMember_ValueTypeReceiver_Invocation()
        {
            string source = @"
public class C
{
    public void M(System.Func<S> f, dynamic d) 
    {
        f().goo(d);
    }
}

public struct S 
{ 
    public int X;
    public void goo(int a) {}
    public void goo(long a) {}
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       97 (0x61)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldstr      ""goo""
  IL_0011:  ldnull
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.1
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_004a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, S, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, S, object>> C.<>o__0.<>p__0""
  IL_0054:  ldarg.1
  IL_0055:  callvirt   ""S System.Func<S>.Invoke()""
  IL_005a:  ldarg.2
  IL_005b:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, S, object>.Invoke(System.Runtime.CompilerServices.CallSite, S, object)""
  IL_0060:  ret
}");
        }

        [Fact]
        public void InvokeMember_InvokeMember()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.f().g();
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      152 (0x98)
  .maxstack  11
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_0037
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""g""
  IL_000d:  ldnull
  IL_000e:  ldtoken    ""C""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldc.i4.1
  IL_0019:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001e:  dup
  IL_001f:  ldc.i4.0
  IL_0020:  ldc.i4.0
  IL_0021:  ldnull
  IL_0022:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0027:  stelem.ref
  IL_0028:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002d:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0032:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_003c:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0041:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_004b:  brtrue.s   IL_007d
  IL_004d:  ldc.i4.0
  IL_004e:  ldstr      ""f""
  IL_0053:  ldnull
  IL_0054:  ldtoken    ""C""
  IL_0059:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005e:  ldc.i4.1
  IL_005f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0064:  dup
  IL_0065:  ldc.i4.0
  IL_0066:  ldc.i4.0
  IL_0067:  ldnull
  IL_0068:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006d:  stelem.ref
  IL_006e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0073:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0078:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_007d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0082:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0087:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_008c:  ldarg.1
  IL_008d:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0092:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0097:  ret
}");
        }

        [Fact]
        public void InvokeConstructor()
        {
            string source = @"
public class C
{
    public D M(dynamic d)
    {
        return new D(d);
    }
}

public class D
{
    public D(int x) {}
    public D(string x) {}
    public D(string x, string y) {}
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       92 (0x5c)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003c
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.s   33
  IL_001c:  ldnull
  IL_001d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0022:  stelem.ref
  IL_0023:  dup
  IL_0024:  ldc.i4.1
  IL_0025:  ldc.i4.0
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeConstructor(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0032:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0037:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>> C.<>o__0.<>p__0""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>> C.<>o__0.<>p__0""
  IL_0041:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>>.Target""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>> C.<>o__0.<>p__0""
  IL_004b:  ldtoken    ""D""
  IL_0050:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0055:  ldarg.1
  IL_0056:  callvirt   ""D System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, D>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_005b:  ret
}
");
        }

        [Fact]
        public void Invoke_Dynamic()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d, int a)
    {
        return d(goo: d, bar: a, baz: 123);
    }
}";

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      117 (0x75)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_005b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.4
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.4
  IL_0025:  ldstr      ""goo""
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.2
  IL_0032:  ldc.i4.5
  IL_0033:  ldstr      ""bar""
  IL_0038:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003d:  stelem.ref
  IL_003e:  dup
  IL_003f:  ldc.i4.3
  IL_0040:  ldc.i4.7
  IL_0041:  ldstr      ""baz""
  IL_0046:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004b:  stelem.ref
  IL_004c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0051:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0056:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_005b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_0060:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>>.Target""
  IL_0065:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>> C.<>o__0.<>p__0""
  IL_006a:  ldarg.1
  IL_006b:  ldarg.1
  IL_006c:  ldarg.2
  IL_006d:  ldc.i4.s   123
  IL_006f:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int, int)""
  IL_0074:  ret
}
");
        }

        [Fact]
        public void Invoke_Dynamic_DiscardResult()
        {
            string source = @"
public class C
{
    public void M(dynamic d, int a)
    {
        d(goo: d, bar: a, baz: 123);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      121 (0x79)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_005f
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.4
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  dup
  IL_0027:  ldc.i4.1
  IL_0028:  ldc.i4.4
  IL_0029:  ldstr      ""goo""
  IL_002e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0033:  stelem.ref
  IL_0034:  dup
  IL_0035:  ldc.i4.2
  IL_0036:  ldc.i4.5
  IL_0037:  ldstr      ""bar""
  IL_003c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0041:  stelem.ref
  IL_0042:  dup
  IL_0043:  ldc.i4.3
  IL_0044:  ldc.i4.7
  IL_0045:  ldstr      ""baz""
  IL_004a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004f:  stelem.ref
  IL_0050:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0055:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_005a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>> C.<>o__0.<>p__0""
  IL_005f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>> C.<>o__0.<>p__0""
  IL_0064:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>>.Target""
  IL_0069:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>> C.<>o__0.<>p__0""
  IL_006e:  ldarg.1
  IL_006f:  ldarg.1
  IL_0070:  ldarg.2
  IL_0071:  ldc.i4.s   123
  IL_0073:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, object, int, int>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int, int)""
  IL_0078:  ret
}
");
        }

        [Fact]
        public void Invoke_DynamicMember()
        {
            const string source = @"
class C
{
    dynamic d = null;
    
    void M(C c)
    {
        c.d(1);
    }
}";

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       91 (0x5b)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_0005:  brtrue.s   IL_003f
  IL_0007:  ldc.i4     0x100
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.2
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  dup
  IL_0027:  ldc.i4.1
  IL_0028:  ldc.i4.3
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0035:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_003f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_0044:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0049:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__1.<>p__0""
  IL_004e:  ldarg.1
  IL_004f:  ldfld      ""dynamic C.d""
  IL_0054:  ldc.i4.1
  IL_0055:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_005a:  ret
}");
        }

        [Fact]
        public void Invoke_Static_01()
        {
            string source = @"
public delegate int F(int a, bool b, params C[] c);

public class C
{
    public dynamic M(F f, dynamic d)
    {
        return f(d, d, d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      104 (0x68)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_004f
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.4
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.1
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.2
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  dup
  IL_0037:  ldc.i4.3
  IL_0038:  ldc.i4.0
  IL_0039:  ldnull
  IL_003a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003f:  stelem.ref
  IL_0040:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0045:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0054:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>>.Target""
  IL_0059:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_005e:  ldarg.1
  IL_005f:  ldarg.2
  IL_0060:  ldarg.2
  IL_0061:  ldarg.2
  IL_0062:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, F, object, object, object)""
  IL_0067:  ret
}
");
        }

        [Fact]
        public void Invoke_Static_02()
        {
            string source = @"
public delegate int F(int a, bool b, C c);

public class C
{
    public dynamic M(F f, dynamic d)
    {
        return f(d, d, d);
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      104 (0x68)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_004f
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.4
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.1
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.2
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  dup
  IL_0037:  ldc.i4.3
  IL_0038:  ldc.i4.0
  IL_0039:  ldnull
  IL_003a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003f:  stelem.ref
  IL_0040:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0045:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0054:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>>.Target""
  IL_0059:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>> C.<>o__0.<>p__0""
  IL_005e:  ldarg.1
  IL_005f:  ldarg.2
  IL_0060:  ldarg.2
  IL_0061:  ldarg.2
  IL_0062:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, F, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, F, object, object, object)""
  IL_0067:  ret
}
");
        }

        [Fact]
        public void Invoke_Invoke()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d()();
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      140 (0x8c)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_0031
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.1
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0027:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0031:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0036:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0040:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0045:  brtrue.s   IL_0071
  IL_0047:  ldc.i4.0
  IL_0048:  ldtoken    ""C""
  IL_004d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0052:  ldc.i4.1
  IL_0053:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0058:  dup
  IL_0059:  ldc.i4.0
  IL_005a:  ldc.i4.0
  IL_005b:  ldnull
  IL_005c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0061:  stelem.ref
  IL_0062:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0067:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_006c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0071:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0076:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_007b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0080:  ldarg.1
  IL_0081:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0086:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_008b:  ret
}");
        }

        [Fact]
        public void TypeInferenceGenericParameterTainting()
        {
            string source = @"
using System.Collections.Generic;

class C
{
    public void F<T>(Dictionary<T, dynamic> d)
    {
    }

    static void M(C c, Dictionary<dynamic, dynamic> d)
    {
        c.F(d);                                          
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size        8 (0x8)
  .maxstack  2
  IL_0000:  ldarg.0
  IL_0001:  ldarg.1
  IL_0002:  callvirt   ""void C.F<object>(System.Collections.Generic.Dictionary<object, dynamic>)""
  IL_0007:  ret
}
");
        }

        [Fact]
        public void InvokeMember_InConstructorInitializer()
        {
            string source = @"
class B 
{
    protected B(int x) { }
}

class C : B
{
    C(dynamic x) : base((int)Goo(x)) { }
 
    static object Goo(object x)
    {
        return x;
    }
    static object Goo(int x)
    {
        return x;
    }
}";
            CompileAndVerifyIL(source, "C..ctor", @"
{
  // Code size      168 (0xa8)
  .maxstack  12
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0006:  brtrue.s   IL_002d
  IL_0008:  ldc.i4.s   16
  IL_000a:  ldtoken    ""int""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__0.<>p__0""
  IL_0041:  brtrue.s   IL_007e
  IL_0043:  ldc.i4.0
  IL_0044:  ldstr      ""Goo""
  IL_0049:  ldnull
  IL_004a:  ldtoken    ""C""
  IL_004f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0054:  ldc.i4.2
  IL_0055:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_005a:  dup
  IL_005b:  ldc.i4.0
  IL_005c:  ldc.i4.s   33
  IL_005e:  ldnull
  IL_005f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0064:  stelem.ref
  IL_0065:  dup
  IL_0066:  ldc.i4.1
  IL_0067:  ldc.i4.0
  IL_0068:  ldnull
  IL_0069:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006e:  stelem.ref
  IL_006f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0074:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0079:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__0.<>p__0""
  IL_007e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__0.<>p__0""
  IL_0083:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>>.Target""
  IL_0088:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>> C.<>o__0.<>p__0""
  IL_008d:  ldtoken    ""C""
  IL_0092:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0097:  ldarg.1
  IL_0098:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, System.Type, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_009d:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00a2:  call       ""B..ctor(int)""
  IL_00a7:  ret
}
");
        }

        [Fact]
        public void Invoke_Field_InConstructorInitializer()
        {
            string source = @"
using System;

class B 
{
    protected B(int x) { }
}

class C : B
{
    C(dynamic x) : base((int)Goo(x)) { }
 
    static D Goo;
}

delegate void D(params object[] x);
";
            CompileAndVerifyIL(source, "C..ctor", @"
{
  // Code size      156 (0x9c)
  .maxstack  10
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0006:  brtrue.s   IL_002d
  IL_0008:  ldc.i4.s   16
  IL_000a:  ldtoken    ""int""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_0041:  brtrue.s   IL_0077
  IL_0043:  ldc.i4.0
  IL_0044:  ldtoken    ""C""
  IL_0049:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_004e:  ldc.i4.2
  IL_004f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0054:  dup
  IL_0055:  ldc.i4.0
  IL_0056:  ldc.i4.1
  IL_0057:  ldnull
  IL_0058:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005d:  stelem.ref
  IL_005e:  dup
  IL_005f:  ldc.i4.1
  IL_0060:  ldc.i4.0
  IL_0061:  ldnull
  IL_0062:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0067:  stelem.ref
  IL_0068:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_006d:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0072:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_0077:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_007c:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, D, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>>.Target""
  IL_0081:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_0086:  ldsfld     ""D C.Goo""
  IL_008b:  ldarg.1
  IL_008c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, D, object)""
  IL_0091:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0096:  call       ""B..ctor(int)""
  IL_009b:  ret
}
");
        }

        [Fact]
        public void Invoke_Property_InConstructorInitializer()
        {
            string source = @"
using System;

class B 
{
    protected B(int x) { }
}

class C : B
{
    C(dynamic x) : base((int)Goo(x)) { }
 
    static D Goo { get; set; }
}

delegate void D(params object[] x);
";
            CompileAndVerifyIL(source, "C..ctor", @"
{
  // Code size      156 (0x9c)
  .maxstack  10
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0006:  brtrue.s   IL_002d
  IL_0008:  ldc.i4.s   16
  IL_000a:  ldtoken    ""int""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_0041:  brtrue.s   IL_0077
  IL_0043:  ldc.i4.0
  IL_0044:  ldtoken    ""C""
  IL_0049:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_004e:  ldc.i4.2
  IL_004f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0054:  dup
  IL_0055:  ldc.i4.0
  IL_0056:  ldc.i4.1
  IL_0057:  ldnull
  IL_0058:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005d:  stelem.ref
  IL_005e:  dup
  IL_005f:  ldc.i4.1
  IL_0060:  ldc.i4.0
  IL_0061:  ldnull
  IL_0062:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0067:  stelem.ref
  IL_0068:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_006d:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0072:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_0077:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_007c:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, D, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>>.Target""
  IL_0081:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>> C.<>o__0.<>p__0""
  IL_0086:  call       ""D C.Goo.get""
  IL_008b:  ldarg.1
  IL_008c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, D, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, D, object)""
  IL_0091:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0096:  call       ""B..ctor(int)""
  IL_009b:  ret
}
");
        }

        #endregion

        #region GetMember, GetIndex, SetMember, SetIndex

        [Fact]
        public void GetMember()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.m;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       76 (0x4c)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0036
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""m""
  IL_000d:  ldtoken    ""C""
  IL_0012:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0017:  ldc.i4.1
  IL_0018:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001d:  dup
  IL_001e:  ldc.i4.0
  IL_001f:  ldc.i4.0
  IL_0020:  ldnull
  IL_0021:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0026:  stelem.ref
  IL_0027:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0031:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_003b:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0040:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0045:  ldarg.1
  IL_0046:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_004b:  ret
}
");
        }

        [Fact]
        public void GetMember_GetMember()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.m.n;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      150 (0x96)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_0036
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""n""
  IL_000d:  ldtoken    ""C""
  IL_0012:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0017:  ldc.i4.1
  IL_0018:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001d:  dup
  IL_001e:  ldc.i4.0
  IL_001f:  ldc.i4.0
  IL_0020:  ldnull
  IL_0021:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0026:  stelem.ref
  IL_0027:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0031:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0036:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_003b:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0040:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__1""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_004a:  brtrue.s   IL_007b
  IL_004c:  ldc.i4.0
  IL_004d:  ldstr      ""m""
  IL_0052:  ldtoken    ""C""
  IL_0057:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005c:  ldc.i4.1
  IL_005d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0062:  dup
  IL_0063:  ldc.i4.0
  IL_0064:  ldc.i4.0
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0071:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0076:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_007b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0080:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0085:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_008a:  ldarg.1
  IL_008b:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0090:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0095:  ret
}
");
        }

        [Fact]
        public void GetIndex()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d[1];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       82 (0x52)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.3
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0040:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_004a:  ldarg.1
  IL_004b:  ldc.i4.1
  IL_004c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_0051:  ret
}
");
        }

        [Fact]
        public void GetMember_GetIndex()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.m[1];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      157 (0x9d)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.3
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_0040:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_004a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_004f:  brtrue.s   IL_0081
  IL_0051:  ldc.i4.s   64
  IL_0053:  ldstr      ""m""
  IL_0058:  ldtoken    ""C""
  IL_005d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0062:  ldc.i4.1
  IL_0063:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0068:  dup
  IL_0069:  ldc.i4.0
  IL_006a:  ldc.i4.0
  IL_006b:  ldnull
  IL_006c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0071:  stelem.ref
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0077:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0081:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0086:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_008b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
  IL_0090:  ldarg.1
  IL_0091:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0096:  ldc.i4.1
  IL_0097:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_009c:  ret
}
");
        }

        [Fact]
        public void GetIndex_GetIndex()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d[1][2];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      162 (0xa2)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.3
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_0040:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_004a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_004f:  brtrue.s   IL_0085
  IL_0051:  ldc.i4.0
  IL_0052:  ldtoken    ""C""
  IL_0057:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005c:  ldc.i4.2
  IL_005d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0062:  dup
  IL_0063:  ldc.i4.0
  IL_0064:  ldc.i4.0
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  dup
  IL_006d:  ldc.i4.1
  IL_006e:  ldc.i4.3
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_007b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0080:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0085:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_008a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_008f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__0""
  IL_0094:  ldarg.1
  IL_0095:  ldc.i4.1
  IL_0096:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_009b:  ldc.i4.2
  IL_009c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_00a1:  ret
}
");
        }

        [Fact]
        public void GetIndex_ManyArgs_F15()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      254 (0xfe)
  .maxstack  18
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue     IL_00d2
  IL_000a:  ldc.i4.0
  IL_000b:  ldtoken    ""C""
  IL_0010:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0015:  ldc.i4.s   16
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.0
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  dup
  IL_0027:  ldc.i4.1
  IL_0028:  ldc.i4.3
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.2
  IL_0032:  ldc.i4.3
  IL_0033:  ldnull
  IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0039:  stelem.ref
  IL_003a:  dup
  IL_003b:  ldc.i4.3
  IL_003c:  ldc.i4.3
  IL_003d:  ldnull
  IL_003e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0043:  stelem.ref
  IL_0044:  dup
  IL_0045:  ldc.i4.4
  IL_0046:  ldc.i4.3
  IL_0047:  ldnull
  IL_0048:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004d:  stelem.ref
  IL_004e:  dup
  IL_004f:  ldc.i4.5
  IL_0050:  ldc.i4.3
  IL_0051:  ldnull
  IL_0052:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0057:  stelem.ref
  IL_0058:  dup
  IL_0059:  ldc.i4.6
  IL_005a:  ldc.i4.3
  IL_005b:  ldnull
  IL_005c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0061:  stelem.ref
  IL_0062:  dup
  IL_0063:  ldc.i4.7
  IL_0064:  ldc.i4.3
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  dup
  IL_006d:  ldc.i4.8
  IL_006e:  ldc.i4.3
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  dup
  IL_0077:  ldc.i4.s   9
  IL_0079:  ldc.i4.3
  IL_007a:  ldnull
  IL_007b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0080:  stelem.ref
  IL_0081:  dup
  IL_0082:  ldc.i4.s   10
  IL_0084:  ldc.i4.3
  IL_0085:  ldnull
  IL_0086:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008b:  stelem.ref
  IL_008c:  dup
  IL_008d:  ldc.i4.s   11
  IL_008f:  ldc.i4.3
  IL_0090:  ldnull
  IL_0091:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0096:  stelem.ref
  IL_0097:  dup
  IL_0098:  ldc.i4.s   12
  IL_009a:  ldc.i4.3
  IL_009b:  ldnull
  IL_009c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00a1:  stelem.ref
  IL_00a2:  dup
  IL_00a3:  ldc.i4.s   13
  IL_00a5:  ldc.i4.3
  IL_00a6:  ldnull
  IL_00a7:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ac:  stelem.ref
  IL_00ad:  dup
  IL_00ae:  ldc.i4.s   14
  IL_00b0:  ldc.i4.3
  IL_00b1:  ldnull
  IL_00b2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b7:  stelem.ref
  IL_00b8:  dup
  IL_00b9:  ldc.i4.s   15
  IL_00bb:  ldc.i4.3
  IL_00bc:  ldnull
  IL_00bd:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c2:  stelem.ref
  IL_00c3:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00c8:  call       ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00cd:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_00d2:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_00d7:  ldfld      ""<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object> System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>>.Target""
  IL_00dc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>> C.<>o__0.<>p__0""
  IL_00e1:  ldarg.1
  IL_00e2:  ldc.i4.1
  IL_00e3:  ldc.i4.2
  IL_00e4:  ldc.i4.3
  IL_00e5:  ldc.i4.4
  IL_00e6:  ldc.i4.5
  IL_00e7:  ldc.i4.6
  IL_00e8:  ldc.i4.7
  IL_00e9:  ldc.i4.8
  IL_00ea:  ldc.i4.s   9
  IL_00ec:  ldc.i4.s   10
  IL_00ee:  ldc.i4.s   11
  IL_00f0:  ldc.i4.s   12
  IL_00f2:  ldc.i4.s   13
  IL_00f4:  ldc.i4.s   14
  IL_00f6:  ldc.i4.s   15
  IL_00f8:  callvirt   ""object <>F<System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, int, int, int, int, int, int, int, int, int, int, int, int, int, int)""
  IL_00fd:  ret
}
");
        }

        [Fact]
        public void GetIndex_ByRef()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d[ref d];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       84 (0x54)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_003c
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.s   9
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0032:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0037:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0041:  ldfld      ""<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004b:  ldarg.1
  IL_004c:  ldarga.s   V_1
  IL_004e:  callvirt   ""object <>F{00000040}<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, ref object)""
  IL_0053:  ret
}
");
        }

        [Fact]
        public void GetIndex_NamedArguments()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d[a: 1, b: d, c: null, d: ref d];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      133 (0x85)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_006a
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.5
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.7
  IL_0025:  ldstr      ""a""
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.2
  IL_0032:  ldc.i4.4
  IL_0033:  ldstr      ""b""
  IL_0038:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003d:  stelem.ref
  IL_003e:  dup
  IL_003f:  ldc.i4.3
  IL_0040:  ldc.i4.6
  IL_0041:  ldstr      ""c""
  IL_0046:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004b:  stelem.ref
  IL_004c:  dup
  IL_004d:  ldc.i4.4
  IL_004e:  ldc.i4.s   13
  IL_0050:  ldstr      ""d""
  IL_0055:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005a:  stelem.ref
  IL_005b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0060:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>> System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0065:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_006a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_006f:  ldfld      ""<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object> System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>>.Target""
  IL_0074:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0079:  ldarg.1
  IL_007a:  ldc.i4.1
  IL_007b:  ldarg.1
  IL_007c:  ldnull
  IL_007d:  ldarga.s   V_1
  IL_007f:  callvirt   ""object <>F{00008000}<System.Runtime.CompilerServices.CallSite, object, int, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, object, object, ref object)""
  IL_0084:  ret
}
");
        }

        [Fact]
        public void GetIndex_StaticReceiver()
        {
            string source = @"
public class C
{
    C a, b;

    int this[int i] { get { return 0; } set { } }

    public dynamic M(dynamic d)
    {
        return a.b[d];
    }

    int this[long i] { get { return 0; } set { } }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       92 (0x5c)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__5.<>p__0""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.1
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__5.<>p__0""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__5.<>p__0""
  IL_0040:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, C, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__5.<>p__0""
  IL_004a:  ldarg.0
  IL_004b:  ldfld      ""C C.a""
  IL_0050:  ldfld      ""C C.b""
  IL_0055:  ldarg.1
  IL_0056:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object)""
  IL_005b:  ret
}
");
        }

        [Fact]
        public void GetIndex_IndexedProperty()
        {
            string vbSource = @"
Imports System.Runtime.InteropServices

<ComImport, Guid(""0002095E-0000-0000-C000-000000000046"")>
Public Class B
    Public ReadOnly Property IndexedProperty(arg As Integer) As Integer
        Get
            Return arg
        End Get
    End Property
    Public ReadOnly Property IndexedProperty(arg As Long) As Long
        Get
            Return arg
        End Get
    End Property
End Class
";
            var vb = CreateVisualBasicCompilation(GetUniqueName(), vbSource);
            var vbRef = vb.EmitToImageReference();

            string source = @"
class C
{
    B b;
    dynamic d;

    object M() 
    {
        return b.IndexedProperty[d];
    }
}
";
            // Dev11 - the receiver of GetMember is typed to Object. That seems like a bug, since InvokeMember on an early bound receiver uses the compile time type.
            // Roslyn: Use strongly typed receiver.
            // Note that accessing an indexed property is the only way how to get strongly typed receiver.

            CompileAndVerifyIL(source, "C.M", references: new MetadataReference[] { SystemCoreRef, CSharpRef, vbRef }, expectedOptimizedIL: @"
{
  // Code size      167 (0xa7)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_0040:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_004a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_004f:  brtrue.s   IL_0081
  IL_0051:  ldc.i4.s   64
  IL_0053:  ldstr      ""IndexedProperty""
  IL_0058:  ldtoken    ""C""
  IL_005d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0062:  ldc.i4.1
  IL_0063:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0068:  dup
  IL_0069:  ldc.i4.0
  IL_006a:  ldc.i4.1
  IL_006b:  ldnull
  IL_006c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0071:  stelem.ref
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0077:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_0081:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_0086:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Target""
  IL_008b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_0090:  ldarg.0
  IL_0091:  ldfld      ""B C.b""
  IL_0096:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object>.Invoke(System.Runtime.CompilerServices.CallSite, B)""
  IL_009b:  ldarg.0
  IL_009c:  ldfld      ""dynamic C.d""
  IL_00a1:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00a6:  ret
}");
        }

        [Fact]
        public void SetIndex_IndexedProperty()
        {
            string vbSource = @"
Imports System.Runtime.InteropServices

<ComImport, Guid(""0002095E-0000-0000-C000-000000000046"")>
Public Class B
    Public Property IndexedProperty(arg As Integer) As Integer
        Get
            Return arg
        End Get
        Set
        End Set
    End Property
    Public Property IndexedProperty(arg As Long) As Long
        Get
            Return arg
        End Get
        Set
        End Set
    End Property
End Class
";
            var vb = CreateVisualBasicCompilation(GetUniqueName(), vbSource);
            var vbRef = vb.EmitToImageReference();

            string source = @"
class C
{
    B b;
    dynamic d;

    object M() 
    {
        return b.IndexedProperty[d] = 42;
    }
}
";
            // Dev11 - the receiver of GetMember is typed to Object. That seems like a bug, since InvokeMember on an early bound receiver uses the compile time type.
            // Roslyn: Use strongly typed receiver.
            // Note that accessing an indexed property is the only way how to get strongly typed receiver.

            CompileAndVerifyIL(source, "C.M", references: new MetadataReference[] { SystemCoreRef, CSharpRef, vbRef }, expectedOptimizedIL: @"
{
  // Code size      179 (0xb3)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__2.<>p__1""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.3
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.2
  IL_002e:  ldc.i4.3
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__2.<>p__1""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__2.<>p__1""
  IL_004a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__2.<>p__1""
  IL_0054:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_0059:  brtrue.s   IL_008b
  IL_005b:  ldc.i4.s   64
  IL_005d:  ldstr      ""IndexedProperty""
  IL_0062:  ldtoken    ""C""
  IL_0067:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_006c:  ldc.i4.1
  IL_006d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0072:  dup
  IL_0073:  ldc.i4.0
  IL_0074:  ldc.i4.1
  IL_0075:  ldnull
  IL_0076:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007b:  stelem.ref
  IL_007c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0081:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0086:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_008b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_0090:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Target""
  IL_0095:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_009a:  ldarg.0
  IL_009b:  ldfld      ""B C.b""
  IL_00a0:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object>.Invoke(System.Runtime.CompilerServices.CallSite, B)""
  IL_00a5:  ldarg.0
  IL_00a6:  ldfld      ""dynamic C.d""
  IL_00ab:  ldc.i4.s   42
  IL_00ad:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int)""
  IL_00b2:  ret
}");
        }

        [Fact]
        public void SetIndex_IndexedProperty_CompoundAssignment()
        {
            string vbSource = @"
Imports System.Runtime.InteropServices

<ComImport, Guid(""0002095E-0000-0000-C000-000000000046"")>
Public Class B
    Public Property IndexedProperty(arg As Integer) As Integer
        Get
            Return arg
        End Get
        Set
        End Set
    End Property
    Public Property IndexedProperty(arg As Long) As Long
        Get
            Return arg
        End Get
        Set
        End Set
    End Property
End Class
";
            var vb = CreateVisualBasicCompilation(GetUniqueName(), vbSource);
            var vbRef = vb.EmitToImageReference();

            string source = @"
class C
{
    B b;
    dynamic d;

    object M() 
    {
        return b.IndexedProperty[d] += 42;
    }
}
";
            // Dev11 - the receiver of GetMember is typed to Object. That seems like a bug, since InvokeMember on an early bound receiver uses the compile time type.
            // Roslyn: Use strongly typed receiver.
            // Note that accessing an indexed property is the only way how to get strongly typed receiver.

            CompileAndVerifyIL(source, "C.M", references: new MetadataReference[] { SystemCoreRef, CSharpRef, vbRef }, expectedOptimizedIL: @"
{
  // Code size      424 (0x1a8)
  .maxstack  16
  .locals init (B V_0,
                object V_1)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""B C.b""
  IL_0006:  stloc.0
  IL_0007:  ldarg.0
  IL_0008:  ldfld      ""dynamic C.d""
  IL_000d:  stloc.1
  IL_000e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__2.<>p__4""
  IL_0013:  brtrue.s   IL_0057
  IL_0015:  ldc.i4     0x80
  IL_001a:  ldtoken    ""C""
  IL_001f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0024:  ldc.i4.3
  IL_0025:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002a:  dup
  IL_002b:  ldc.i4.0
  IL_002c:  ldc.i4.0
  IL_002d:  ldnull
  IL_002e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0033:  stelem.ref
  IL_0034:  dup
  IL_0035:  ldc.i4.1
  IL_0036:  ldc.i4.0
  IL_0037:  ldnull
  IL_0038:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003d:  stelem.ref
  IL_003e:  dup
  IL_003f:  ldc.i4.2
  IL_0040:  ldc.i4.0
  IL_0041:  ldnull
  IL_0042:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0047:  stelem.ref
  IL_0048:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_004d:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0052:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__2.<>p__4""
  IL_0057:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__2.<>p__4""
  IL_005c:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Target""
  IL_0061:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__2.<>p__4""
  IL_0066:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__3""
  IL_006b:  brtrue.s   IL_009d
  IL_006d:  ldc.i4.s   64
  IL_006f:  ldstr      ""IndexedProperty""
  IL_0074:  ldtoken    ""C""
  IL_0079:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_007e:  ldc.i4.1
  IL_007f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0084:  dup
  IL_0085:  ldc.i4.0
  IL_0086:  ldc.i4.1
  IL_0087:  ldnull
  IL_0088:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008d:  stelem.ref
  IL_008e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0093:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0098:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__3""
  IL_009d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__3""
  IL_00a2:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Target""
  IL_00a7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__3""
  IL_00ac:  ldloc.0
  IL_00ad:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object>.Invoke(System.Runtime.CompilerServices.CallSite, B)""
  IL_00b2:  ldloc.1
  IL_00b3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__2""
  IL_00b8:  brtrue.s   IL_00f0
  IL_00ba:  ldc.i4.0
  IL_00bb:  ldc.i4.s   63
  IL_00bd:  ldtoken    ""C""
  IL_00c2:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00c7:  ldc.i4.2
  IL_00c8:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00cd:  dup
  IL_00ce:  ldc.i4.0
  IL_00cf:  ldc.i4.0
  IL_00d0:  ldnull
  IL_00d1:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00d6:  stelem.ref
  IL_00d7:  dup
  IL_00d8:  ldc.i4.1
  IL_00d9:  ldc.i4.3
  IL_00da:  ldnull
  IL_00db:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00e0:  stelem.ref
  IL_00e1:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00e6:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00eb:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__2""
  IL_00f0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__2""
  IL_00f5:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_00fa:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__2.<>p__2""
  IL_00ff:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_0104:  brtrue.s   IL_013a
  IL_0106:  ldc.i4.0
  IL_0107:  ldtoken    ""C""
  IL_010c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0111:  ldc.i4.2
  IL_0112:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0117:  dup
  IL_0118:  ldc.i4.0
  IL_0119:  ldc.i4.0
  IL_011a:  ldnull
  IL_011b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0120:  stelem.ref
  IL_0121:  dup
  IL_0122:  ldc.i4.1
  IL_0123:  ldc.i4.0
  IL_0124:  ldnull
  IL_0125:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_012a:  stelem.ref
  IL_012b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0130:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0135:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_013a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_013f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0144:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_0149:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_014e:  brtrue.s   IL_0180
  IL_0150:  ldc.i4.s   64
  IL_0152:  ldstr      ""IndexedProperty""
  IL_0157:  ldtoken    ""C""
  IL_015c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0161:  ldc.i4.1
  IL_0162:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0167:  dup
  IL_0168:  ldc.i4.0
  IL_0169:  ldc.i4.1
  IL_016a:  ldnull
  IL_016b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0170:  stelem.ref
  IL_0171:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0176:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_017b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_0180:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_0185:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, B, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>>.Target""
  IL_018a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, B, object>> C.<>o__2.<>p__0""
  IL_018f:  ldloc.0
  IL_0190:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, B, object>.Invoke(System.Runtime.CompilerServices.CallSite, B)""
  IL_0195:  ldloc.1
  IL_0196:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_019b:  ldc.i4.s   42
  IL_019d:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_01a2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, object)""
  IL_01a7:  ret
}
");
        }

        [Fact]
        public void GetIndex_IndexerWithByRefParam()
        {
            var ilRef = MetadataReference.CreateFromImage(TestResources.MetadataTests.Interop.IndexerWithByRefParam.AsImmutableOrNull());

            string source = @"
using System.Runtime.InteropServices;

class C
{
    BB b;
    dynamic d;

    object M() 
    {
        return b[d];
    }
}

[ComImport, Guid(""0002095E-0000-0000-C000-000000000046"")]
interface BB : B
{
    long this[long x] {get;}
}
";
            CompileAndVerifyIL(source, "C.M", references: new MetadataReference[] { SystemCoreRef, CSharpRef, ilRef }, expectedOptimizedIL: @"
{
  // Code size       92 (0x5c)
  .maxstack  7
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>> C.<>o__2.<>p__0""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.1
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>> C.<>o__2.<>p__0""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>> C.<>o__2.<>p__0""
  IL_0040:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>> C.<>o__2.<>p__0""
  IL_004a:  ldarg.0
  IL_004b:  ldfld      ""BB C.b""
  IL_0050:  ldarg.0
  IL_0051:  ldfld      ""dynamic C.d""
  IL_0056:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, BB, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, BB, object)""
  IL_005b:  ret
}
");
        }

        [Fact]
        public void SetIndex_SetIndex_Receiver()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return (d[1] = d)[2];
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      173 (0xad)
  .maxstack  9
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_003b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.2
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.3
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0036:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_0040:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__0.<>p__1""
  IL_004a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__0.<>p__0""
  IL_004f:  brtrue.s   IL_008f
  IL_0051:  ldc.i4.0
  IL_0052:  ldtoken    ""C""
  IL_0057:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005c:  ldc.i4.3
  IL_005d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0062:  dup
  IL_0063:  ldc.i4.0
  IL_0064:  ldc.i4.0
  IL_0065:  ldnull
  IL_0066:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006b:  stelem.ref
  IL_006c:  dup
  IL_006d:  ldc.i4.1
  IL_006e:  ldc.i4.3
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  dup
  IL_0077:  ldc.i4.2
  IL_0078:  ldc.i4.0
  IL_0079:  ldnull
  IL_007a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007f:  stelem.ref
  IL_0080:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0085:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_008a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__0.<>p__0""
  IL_008f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__0.<>p__0""
  IL_0094:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>>.Target""
  IL_0099:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>> C.<>o__0.<>p__0""
  IL_009e:  ldarg.1
  IL_009f:  ldc.i4.1
  IL_00a0:  ldarg.1
  IL_00a1:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, object)""
  IL_00a6:  ldc.i4.2
  IL_00a7:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_00ac:  ret
}
");
        }

        [Fact]
        public void SetIndex_SetIndex_Argument()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d[d[d] = d] = d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      184 (0xb8)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_0045
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.3
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.2
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__1""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__1""
  IL_004a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__1""
  IL_0054:  ldarg.1
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_005a:  brtrue.s   IL_009a
  IL_005c:  ldc.i4.0
  IL_005d:  ldtoken    ""C""
  IL_0062:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0067:  ldc.i4.3
  IL_0068:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_006d:  dup
  IL_006e:  ldc.i4.0
  IL_006f:  ldc.i4.0
  IL_0070:  ldnull
  IL_0071:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0076:  stelem.ref
  IL_0077:  dup
  IL_0078:  ldc.i4.1
  IL_0079:  ldc.i4.0
  IL_007a:  ldnull
  IL_007b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0080:  stelem.ref
  IL_0081:  dup
  IL_0082:  ldc.i4.2
  IL_0083:  ldc.i4.0
  IL_0084:  ldnull
  IL_0085:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008a:  stelem.ref
  IL_008b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0090:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0095:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_009a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_009f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>>.Target""
  IL_00a4:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>> C.<>o__0.<>p__0""
  IL_00a9:  ldarg.1
  IL_00aa:  ldarg.1
  IL_00ab:  ldarg.1
  IL_00ac:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, object)""
  IL_00b1:  ldarg.1
  IL_00b2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, object)""
  IL_00b7:  ret
}
");
        }

        [Fact]
        public void SetIndex_NamedArguments()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d[a: d, b: 0, c: null, d: out d] = null;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      144 (0x90)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0074
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""C""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldc.i4.6
  IL_0013:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0018:  dup
  IL_0019:  ldc.i4.0
  IL_001a:  ldc.i4.0
  IL_001b:  ldnull
  IL_001c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0021:  stelem.ref
  IL_0022:  dup
  IL_0023:  ldc.i4.1
  IL_0024:  ldc.i4.4
  IL_0025:  ldstr      ""a""
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.2
  IL_0032:  ldc.i4.7
  IL_0033:  ldstr      ""b""
  IL_0038:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003d:  stelem.ref
  IL_003e:  dup
  IL_003f:  ldc.i4.3
  IL_0040:  ldc.i4.6
  IL_0041:  ldstr      ""c""
  IL_0046:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004b:  stelem.ref
  IL_004c:  dup
  IL_004d:  ldc.i4.4
  IL_004e:  ldc.i4.s   21
  IL_0050:  ldstr      ""d""
  IL_0055:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005a:  stelem.ref
  IL_005b:  dup
  IL_005c:  ldc.i4.5
  IL_005d:  ldc.i4.2
  IL_005e:  ldnull
  IL_005f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0064:  stelem.ref
  IL_0065:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_006a:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>> System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_006f:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0074:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0079:  ldfld      ""<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object> System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>>.Target""
  IL_007e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>> C.<>o__0.<>p__0""
  IL_0083:  ldarg.1
  IL_0084:  ldarg.1
  IL_0085:  ldc.i4.0
  IL_0086:  ldnull
  IL_0087:  ldarga.s   V_1
  IL_0089:  ldnull
  IL_008a:  callvirt   ""object <>F{00008000}<System.Runtime.CompilerServices.CallSite, object, object, int, object, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int, object, ref object, object)""
  IL_008f:  ret
}
");
        }

        [Fact]
        public void SetIndex_ValueTypeReceiver_Local_01()
        {
            string source = @"
public class C
{
    public void M(dynamic d) 
    {
        S s = new S();
        s[d] = 1;
    }
}

public struct S 
{ 
    public int X;
    public int this[int index] { get { return index; } set { } }
    public long this[long index] { get { return index; } set { } }
}
";
            // Dev11 produces more efficient code, see bug 547265:
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      104 (0x68)
  .maxstack  7
  .locals init (S V_0) //s
  IL_0000:  ldloca.s   V_0
  IL_0002:  initobj    ""S""
  IL_0008:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_000d:  brtrue.s   IL_004e
  IL_000f:  ldc.i4.0
  IL_0010:  ldtoken    ""C""
  IL_0015:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001a:  ldc.i4.3
  IL_001b:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0020:  dup
  IL_0021:  ldc.i4.0
  IL_0022:  ldc.i4.s   9
  IL_0024:  ldnull
  IL_0025:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002a:  stelem.ref
  IL_002b:  dup
  IL_002c:  ldc.i4.1
  IL_002d:  ldc.i4.0
  IL_002e:  ldnull
  IL_002f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0034:  stelem.ref
  IL_0035:  dup
  IL_0036:  ldc.i4.2
  IL_0037:  ldc.i4.3
  IL_0038:  ldnull
  IL_0039:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003e:  stelem.ref
  IL_003f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0044:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0049:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_004e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_0053:  ldfld      ""<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object> System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>>.Target""
  IL_0058:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_005d:  ldloca.s   V_0
  IL_005f:  ldarg.1
  IL_0060:  ldc.i4.1
  IL_0061:  callvirt   ""object <>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object, int)""
  IL_0066:  pop
  IL_0067:  ret
}");
        }

        [Fact]
        public void SetIndex_ValueTypeReceiver_Local_02()
        {
            string source = @"
public class C
{
    public void M(dynamic d) 
    {
        S s = new S();
        s[d] = 1;
    }
}

public struct S 
{ 
    public int X;
    public int this[int index] { get { return index; } set { } }
}
";

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      104 (0x68)
  .maxstack  7
  .locals init (S V_0) //s
  IL_0000:  ldloca.s   V_0
  IL_0002:  initobj    ""S""
  IL_0008:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_000d:  brtrue.s   IL_004e
  IL_000f:  ldc.i4.0
  IL_0010:  ldtoken    ""C""
  IL_0015:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001a:  ldc.i4.3
  IL_001b:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0020:  dup
  IL_0021:  ldc.i4.0
  IL_0022:  ldc.i4.s   9
  IL_0024:  ldnull
  IL_0025:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002a:  stelem.ref
  IL_002b:  dup
  IL_002c:  ldc.i4.1
  IL_002d:  ldc.i4.0
  IL_002e:  ldnull
  IL_002f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0034:  stelem.ref
  IL_0035:  dup
  IL_0036:  ldc.i4.2
  IL_0037:  ldc.i4.3
  IL_0038:  ldnull
  IL_0039:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003e:  stelem.ref
  IL_003f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0044:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0049:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_004e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_0053:  ldfld      ""<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object> System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>>.Target""
  IL_0058:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>> C.<>o__0.<>p__0""
  IL_005d:  ldloca.s   V_0
  IL_005f:  ldarg.1
  IL_0060:  ldc.i4.1
  IL_0061:  callvirt   ""object <>F{00000008}<System.Runtime.CompilerServices.CallSite, S, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, ref S, object, int)""
  IL_0066:  pop
  IL_0067:  ret
}
");
        }

        [Fact]
        public void SetMember()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return d.m = d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       87 (0x57)
  .maxstack  8
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_0040
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""m""
  IL_000d:  ldtoken    ""C""
  IL_0012:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0017:  ldc.i4.2
  IL_0018:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001d:  dup
  IL_001e:  ldc.i4.0
  IL_001f:  ldc.i4.0
  IL_0020:  ldnull
  IL_0021:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0026:  stelem.ref
  IL_0027:  dup
  IL_0028:  ldc.i4.1
  IL_0029:  ldc.i4.0
  IL_002a:  ldnull
  IL_002b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0030:  stelem.ref
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0040:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0045:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_004a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004f:  ldarg.1
  IL_0050:  ldarg.1
  IL_0051:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0056:  ret
}
");
        }

        [Fact]
        public void SetMember_SetMember()
        {
            string source = @"
public class C
{
    public dynamic M(dynamic d)
    {
        return (d.a = d).b = d;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      172 (0xac)
  .maxstack  10
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_0040
  IL_0007:  ldc.i4.0
  IL_0008:  ldstr      ""b""
  IL_000d:  ldtoken    ""C""
  IL_0012:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0017:  ldc.i4.2
  IL_0018:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001d:  dup
  IL_001e:  ldc.i4.0
  IL_001f:  ldc.i4.0
  IL_0020:  ldnull
  IL_0021:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0026:  stelem.ref
  IL_0027:  dup
  IL_0028:  ldc.i4.1
  IL_0029:  ldc.i4.0
  IL_002a:  ldnull
  IL_002b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0030:  stelem.ref
  IL_0031:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_0040:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_0045:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_004a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0054:  brtrue.s   IL_008f
  IL_0056:  ldc.i4.0
  IL_0057:  ldstr      ""a""
  IL_005c:  ldtoken    ""C""
  IL_0061:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0066:  ldc.i4.2
  IL_0067:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_006c:  dup
  IL_006d:  ldc.i4.0
  IL_006e:  ldc.i4.0
  IL_006f:  ldnull
  IL_0070:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0075:  stelem.ref
  IL_0076:  dup
  IL_0077:  ldc.i4.1
  IL_0078:  ldc.i4.0
  IL_0079:  ldnull
  IL_007a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007f:  stelem.ref
  IL_0080:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0085:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_008a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_008f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0094:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0099:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_009e:  ldarg.1
  IL_009f:  ldarg.1
  IL_00a0:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00a5:  ldarg.1
  IL_00a6:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00ab:  ret
}
");
        }

        #endregion

        #region Assignment

        [Fact]
        public void AssignmentRhsConversion()
        {
            string source = @"
public class C
{
    public void M(dynamic p) 
    {
        dynamic d = 1;
        p = 2;
        d.f = 1.0;
        p[2] = 'c';
    }
}
";
            // Dev11 produces more efficient code, see bug 547265:
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      205 (0xcd)
  .maxstack  8
  .locals init (object V_0) //d
  IL_0000:  ldc.i4.1
  IL_0001:  box        ""int""
  IL_0006:  stloc.0
  IL_0007:  ldc.i4.2
  IL_0008:  box        ""int""
  IL_000d:  starg.s    V_1
  IL_000f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>> C.<>o__0.<>p__0""
  IL_0014:  brtrue.s   IL_004f
  IL_0016:  ldc.i4.0
  IL_0017:  ldstr      ""f""
  IL_001c:  ldtoken    ""C""
  IL_0021:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0026:  ldc.i4.2
  IL_0027:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_002c:  dup
  IL_002d:  ldc.i4.0
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  dup
  IL_0037:  ldc.i4.1
  IL_0038:  ldc.i4.3
  IL_0039:  ldnull
  IL_003a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003f:  stelem.ref
  IL_0040:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0045:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_004a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>> C.<>o__0.<>p__0""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>> C.<>o__0.<>p__0""
  IL_0054:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, double, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>>.Target""
  IL_0059:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>> C.<>o__0.<>p__0""
  IL_005e:  ldloc.0
  IL_005f:  ldc.r8     1
  IL_0068:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, double, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, double)""
  IL_006d:  pop
  IL_006e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>> C.<>o__0.<>p__1""
  IL_0073:  brtrue.s   IL_00b3
  IL_0075:  ldc.i4.0
  IL_0076:  ldtoken    ""C""
  IL_007b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0080:  ldc.i4.3
  IL_0081:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0086:  dup
  IL_0087:  ldc.i4.0
  IL_0088:  ldc.i4.0
  IL_0089:  ldnull
  IL_008a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008f:  stelem.ref
  IL_0090:  dup
  IL_0091:  ldc.i4.1
  IL_0092:  ldc.i4.3
  IL_0093:  ldnull
  IL_0094:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0099:  stelem.ref
  IL_009a:  dup
  IL_009b:  ldc.i4.2
  IL_009c:  ldc.i4.3
  IL_009d:  ldnull
  IL_009e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00a3:  stelem.ref
  IL_00a4:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00a9:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00ae:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>> C.<>o__0.<>p__1""
  IL_00b3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>> C.<>o__0.<>p__1""
  IL_00b8:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>>.Target""
  IL_00bd:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>> C.<>o__0.<>p__1""
  IL_00c2:  ldarg.1
  IL_00c3:  ldc.i4.2
  IL_00c4:  ldc.i4.s   99
  IL_00c6:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, char, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int, char)""
  IL_00cb:  pop
  IL_00cc:  ret
}
");
        }

        [Fact]
        public void CompoundDynamicMemberAssignment()
        {
            string source = @"
public class C
{
    dynamic d, v;

    public dynamic M()
    {
        return d.m *= v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      259 (0x103)
  .maxstack  13
  .locals init (object V_0)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_000c:  brtrue.s   IL_004b
  IL_000e:  ldc.i4     0x80
  IL_0013:  ldstr      ""m""
  IL_0018:  ldtoken    ""C""
  IL_001d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0022:  ldc.i4.2
  IL_0023:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0028:  dup
  IL_0029:  ldc.i4.0
  IL_002a:  ldc.i4.0
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  dup
  IL_0033:  ldc.i4.1
  IL_0034:  ldc.i4.0
  IL_0035:  ldnull
  IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003b:  stelem.ref
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0041:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0046:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_0050:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_005a:  ldloc.0
  IL_005b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_0060:  brtrue.s   IL_0098
  IL_0062:  ldc.i4.0
  IL_0063:  ldc.i4.s   69
  IL_0065:  ldtoken    ""C""
  IL_006a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_006f:  ldc.i4.2
  IL_0070:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0075:  dup
  IL_0076:  ldc.i4.0
  IL_0077:  ldc.i4.0
  IL_0078:  ldnull
  IL_0079:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007e:  stelem.ref
  IL_007f:  dup
  IL_0080:  ldc.i4.1
  IL_0081:  ldc.i4.0
  IL_0082:  ldnull
  IL_0083:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0088:  stelem.ref
  IL_0089:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_008e:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0093:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_0098:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_009d:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00a2:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__1""
  IL_00a7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00ac:  brtrue.s   IL_00dd
  IL_00ae:  ldc.i4.0
  IL_00af:  ldstr      ""m""
  IL_00b4:  ldtoken    ""C""
  IL_00b9:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00be:  ldc.i4.1
  IL_00bf:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00c4:  dup
  IL_00c5:  ldc.i4.0
  IL_00c6:  ldc.i4.0
  IL_00c7:  ldnull
  IL_00c8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00cd:  stelem.ref
  IL_00ce:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00d3:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d8:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00dd:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00e2:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_00e7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_00ec:  ldloc.0
  IL_00ed:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00f2:  ldarg.0
  IL_00f3:  ldfld      ""dynamic C.v""
  IL_00f8:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00fd:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0102:  ret
}");
        }

        [Fact]
        public void CompoundDynamicMemberAssignment_PossibleAddHandler()
        {
            string source = @"
public class C
{
    dynamic d, v;

    public dynamic M()
    {
        return d.m += v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      424 (0x1a8)
  .maxstack  11
  .locals init (object V_0,
                bool V_1,
                object V_2,
                object V_3)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_000c:  brtrue.s   IL_002d
  IL_000e:  ldc.i4.0
  IL_000f:  ldstr      ""m""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.IsEvent(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_003c:  ldloc.0
  IL_003d:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0042:  stloc.1
  IL_0043:  ldloc.1
  IL_0044:  brtrue.s   IL_0092
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_004b:  brtrue.s   IL_007c
  IL_004d:  ldc.i4.0
  IL_004e:  ldstr      ""m""
  IL_0053:  ldtoken    ""C""
  IL_0058:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005d:  ldc.i4.1
  IL_005e:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0063:  dup
  IL_0064:  ldc.i4.0
  IL_0065:  ldc.i4.0
  IL_0066:  ldnull
  IL_0067:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006c:  stelem.ref
  IL_006d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0077:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_007c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_0081:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0086:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_008b:  ldloc.0
  IL_008c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0091:  stloc.2
  IL_0092:  ldarg.0
  IL_0093:  ldfld      ""dynamic C.v""
  IL_0098:  stloc.3
  IL_0099:  ldloc.1
  IL_009a:  brtrue     IL_014c
  IL_009f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00a4:  brtrue.s   IL_00e3
  IL_00a6:  ldc.i4     0x80
  IL_00ab:  ldstr      ""m""
  IL_00b0:  ldtoken    ""C""
  IL_00b5:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00ba:  ldc.i4.2
  IL_00bb:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00c0:  dup
  IL_00c1:  ldc.i4.0
  IL_00c2:  ldc.i4.0
  IL_00c3:  ldnull
  IL_00c4:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c9:  stelem.ref
  IL_00ca:  dup
  IL_00cb:  ldc.i4.1
  IL_00cc:  ldc.i4.0
  IL_00cd:  ldnull
  IL_00ce:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00d3:  stelem.ref
  IL_00d4:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00d9:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00de:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00e3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00e8:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00ed:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00f2:  ldloc.0
  IL_00f3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_00f8:  brtrue.s   IL_0130
  IL_00fa:  ldc.i4.0
  IL_00fb:  ldc.i4.s   63
  IL_00fd:  ldtoken    ""C""
  IL_0102:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0107:  ldc.i4.2
  IL_0108:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_010d:  dup
  IL_010e:  ldc.i4.0
  IL_010f:  ldc.i4.0
  IL_0110:  ldnull
  IL_0111:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0116:  stelem.ref
  IL_0117:  dup
  IL_0118:  ldc.i4.1
  IL_0119:  ldc.i4.0
  IL_011a:  ldnull
  IL_011b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0120:  stelem.ref
  IL_0121:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0126:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_012b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_0130:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_0135:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_013a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_013f:  ldloc.2
  IL_0140:  ldloc.3
  IL_0141:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0146:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_014b:  ret
  IL_014c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_0151:  brtrue.s   IL_0191
  IL_0153:  ldc.i4     0x104
  IL_0158:  ldstr      ""add_m""
  IL_015d:  ldnull
  IL_015e:  ldtoken    ""C""
  IL_0163:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0168:  ldc.i4.2
  IL_0169:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_016e:  dup
  IL_016f:  ldc.i4.0
  IL_0170:  ldc.i4.0
  IL_0171:  ldnull
  IL_0172:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0177:  stelem.ref
  IL_0178:  dup
  IL_0179:  ldc.i4.1
  IL_017a:  ldc.i4.0
  IL_017b:  ldnull
  IL_017c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0181:  stelem.ref
  IL_0182:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0187:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_018c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_0191:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_0196:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_019b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_01a0:  ldloc.0
  IL_01a1:  ldloc.3
  IL_01a2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_01a7:  ret
}
");
        }

        [Fact]
        public void CompoundDynamicMemberAssignment_PossibleRemoveHandlerNull()
        {
            string source = @"
public class C
{
    dynamic d;

    public void M()
    {
        d.m -= null;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      419 (0x1a3)
  .maxstack  11
  .locals init (object V_0,
                bool V_1,
                object V_2)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_000c:  brtrue.s   IL_002d
  IL_000e:  ldc.i4.0
  IL_000f:  ldstr      ""m""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.IsEvent(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__1""
  IL_003c:  ldloc.0
  IL_003d:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0042:  stloc.1
  IL_0043:  ldloc.1
  IL_0044:  brtrue.s   IL_0092
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_004b:  brtrue.s   IL_007c
  IL_004d:  ldc.i4.0
  IL_004e:  ldstr      ""m""
  IL_0053:  ldtoken    ""C""
  IL_0058:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005d:  ldc.i4.1
  IL_005e:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0063:  dup
  IL_0064:  ldc.i4.0
  IL_0065:  ldc.i4.0
  IL_0066:  ldnull
  IL_0067:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006c:  stelem.ref
  IL_006d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0077:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_007c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_0081:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0086:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__1.<>p__0""
  IL_008b:  ldloc.0
  IL_008c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0091:  stloc.2
  IL_0092:  ldloc.1
  IL_0093:  brtrue     IL_0146
  IL_0098:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__4""
  IL_009d:  brtrue.s   IL_00dc
  IL_009f:  ldc.i4     0x80
  IL_00a4:  ldstr      ""m""
  IL_00a9:  ldtoken    ""C""
  IL_00ae:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00b3:  ldc.i4.2
  IL_00b4:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00b9:  dup
  IL_00ba:  ldc.i4.0
  IL_00bb:  ldc.i4.0
  IL_00bc:  ldnull
  IL_00bd:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c2:  stelem.ref
  IL_00c3:  dup
  IL_00c4:  ldc.i4.1
  IL_00c5:  ldc.i4.0
  IL_00c6:  ldnull
  IL_00c7:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00cc:  stelem.ref
  IL_00cd:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00d2:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d7:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__4""
  IL_00dc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__4""
  IL_00e1:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00e6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__4""
  IL_00eb:  ldloc.0
  IL_00ec:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__3""
  IL_00f1:  brtrue.s   IL_0129
  IL_00f3:  ldc.i4.0
  IL_00f4:  ldc.i4.s   73
  IL_00f6:  ldtoken    ""C""
  IL_00fb:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0100:  ldc.i4.2
  IL_0101:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0106:  dup
  IL_0107:  ldc.i4.0
  IL_0108:  ldc.i4.0
  IL_0109:  ldnull
  IL_010a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_010f:  stelem.ref
  IL_0110:  dup
  IL_0111:  ldc.i4.1
  IL_0112:  ldc.i4.2
  IL_0113:  ldnull
  IL_0114:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0119:  stelem.ref
  IL_011a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_011f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0124:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__3""
  IL_0129:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__3""
  IL_012e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0133:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__3""
  IL_0138:  ldloc.2
  IL_0139:  ldnull
  IL_013a:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_013f:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0144:  pop
  IL_0145:  ret
  IL_0146:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_014b:  brtrue.s   IL_018b
  IL_014d:  ldc.i4     0x104
  IL_0152:  ldstr      ""remove_m""
  IL_0157:  ldnull
  IL_0158:  ldtoken    ""C""
  IL_015d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0162:  ldc.i4.2
  IL_0163:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0168:  dup
  IL_0169:  ldc.i4.0
  IL_016a:  ldc.i4.0
  IL_016b:  ldnull
  IL_016c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0171:  stelem.ref
  IL_0172:  dup
  IL_0173:  ldc.i4.1
  IL_0174:  ldc.i4.2
  IL_0175:  ldnull
  IL_0176:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_017b:  stelem.ref
  IL_017c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0181:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0186:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_018b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_0190:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0195:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__2""
  IL_019a:  ldloc.0
  IL_019b:  ldnull
  IL_019c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_01a1:  pop
  IL_01a2:  ret
}
");
        }

        [Fact]
        public void CompoundDynamicMemberAssignment_PossibleRemoveHandler()
        {
            string source = @"
public class C
{
    dynamic d, v;

    public dynamic M()
    {
        return d.m -= v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      424 (0x1a8)
  .maxstack  11
  .locals init (object V_0,
                bool V_1,
                object V_2,
                object V_3)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_000c:  brtrue.s   IL_002d
  IL_000e:  ldc.i4.0
  IL_000f:  ldstr      ""m""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.IsEvent(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__2.<>p__1""
  IL_003c:  ldloc.0
  IL_003d:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0042:  stloc.1
  IL_0043:  ldloc.1
  IL_0044:  brtrue.s   IL_0092
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_004b:  brtrue.s   IL_007c
  IL_004d:  ldc.i4.0
  IL_004e:  ldstr      ""m""
  IL_0053:  ldtoken    ""C""
  IL_0058:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005d:  ldc.i4.1
  IL_005e:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0063:  dup
  IL_0064:  ldc.i4.0
  IL_0065:  ldc.i4.0
  IL_0066:  ldnull
  IL_0067:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006c:  stelem.ref
  IL_006d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0077:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_007c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_0081:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0086:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__2.<>p__0""
  IL_008b:  ldloc.0
  IL_008c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0091:  stloc.2
  IL_0092:  ldarg.0
  IL_0093:  ldfld      ""dynamic C.v""
  IL_0098:  stloc.3
  IL_0099:  ldloc.1
  IL_009a:  brtrue     IL_014c
  IL_009f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00a4:  brtrue.s   IL_00e3
  IL_00a6:  ldc.i4     0x80
  IL_00ab:  ldstr      ""m""
  IL_00b0:  ldtoken    ""C""
  IL_00b5:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00ba:  ldc.i4.2
  IL_00bb:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00c0:  dup
  IL_00c1:  ldc.i4.0
  IL_00c2:  ldc.i4.0
  IL_00c3:  ldnull
  IL_00c4:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c9:  stelem.ref
  IL_00ca:  dup
  IL_00cb:  ldc.i4.1
  IL_00cc:  ldc.i4.0
  IL_00cd:  ldnull
  IL_00ce:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00d3:  stelem.ref
  IL_00d4:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00d9:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00de:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00e3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00e8:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00ed:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__4""
  IL_00f2:  ldloc.0
  IL_00f3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_00f8:  brtrue.s   IL_0130
  IL_00fa:  ldc.i4.0
  IL_00fb:  ldc.i4.s   73
  IL_00fd:  ldtoken    ""C""
  IL_0102:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0107:  ldc.i4.2
  IL_0108:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_010d:  dup
  IL_010e:  ldc.i4.0
  IL_010f:  ldc.i4.0
  IL_0110:  ldnull
  IL_0111:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0116:  stelem.ref
  IL_0117:  dup
  IL_0118:  ldc.i4.1
  IL_0119:  ldc.i4.0
  IL_011a:  ldnull
  IL_011b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0120:  stelem.ref
  IL_0121:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0126:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_012b:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_0130:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_0135:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_013a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__3""
  IL_013f:  ldloc.2
  IL_0140:  ldloc.3
  IL_0141:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0146:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_014b:  ret
  IL_014c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_0151:  brtrue.s   IL_0191
  IL_0153:  ldc.i4     0x104
  IL_0158:  ldstr      ""remove_m""
  IL_015d:  ldnull
  IL_015e:  ldtoken    ""C""
  IL_0163:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0168:  ldc.i4.2
  IL_0169:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_016e:  dup
  IL_016f:  ldc.i4.0
  IL_0170:  ldc.i4.0
  IL_0171:  ldnull
  IL_0172:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0177:  stelem.ref
  IL_0178:  dup
  IL_0179:  ldc.i4.1
  IL_017a:  ldc.i4.0
  IL_017b:  ldnull
  IL_017c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0181:  stelem.ref
  IL_0182:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0187:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_018c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_0191:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_0196:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_019b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__2.<>p__2""
  IL_01a0:  ldloc.0
  IL_01a1:  ldloc.3
  IL_01a2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_01a7:  ret
}
");
        }

        [Fact]
        public void CompoundStaticFieldAssignment()
        {
            string source = @"
public class C
{
    public dynamic Field;
    C c;
    dynamic v;

    public dynamic M()
    {
        return c.Field *= v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      110 (0x6e)
  .maxstack  9
  .locals init (C V_0,
                object V_1)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""C C.c""
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__0""
  IL_000d:  brtrue.s   IL_0045
  IL_000f:  ldc.i4.0
  IL_0010:  ldc.i4.s   69
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__0""
  IL_004a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__0""
  IL_0054:  ldloc.0
  IL_0055:  ldfld      ""dynamic C.Field""
  IL_005a:  ldarg.0
  IL_005b:  ldfld      ""dynamic C.v""
  IL_0060:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0065:  dup
  IL_0066:  stloc.1
  IL_0067:  stfld      ""dynamic C.Field""
  IL_006c:  ldloc.1
  IL_006d:  ret
}");
        }

        [Fact]
        public void CompoundStaticPropertyAssignment()
        {
            string source = @"
public class C
{
    public dynamic Property { get; set; }
    C c;
    dynamic v;

    public dynamic M()
    {
        return c.Property *= v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      110 (0x6e)
  .maxstack  9
  .locals init (C V_0,
                object V_1)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""C C.c""
  IL_0006:  stloc.0
  IL_0007:  ldloc.0
  IL_0008:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__6.<>p__0""
  IL_000d:  brtrue.s   IL_0045
  IL_000f:  ldc.i4.0
  IL_0010:  ldc.i4.s   69
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.0
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__6.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__6.<>p__0""
  IL_004a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__6.<>p__0""
  IL_0054:  ldloc.0
  IL_0055:  callvirt   ""dynamic C.Property.get""
  IL_005a:  ldarg.0
  IL_005b:  ldfld      ""dynamic C.v""
  IL_0060:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0065:  dup
  IL_0066:  stloc.1
  IL_0067:  callvirt   ""void C.Property.set""
  IL_006c:  ldloc.1
  IL_006d:  ret
}
");
        }

        [Fact]
        public void CompoundDynamicIndexerAssignment()
        {
            string source = @"
public class C
{
    public int f() { return 1; }

    public dynamic M(dynamic d, dynamic i, dynamic v)
    {
        return d[i, f()] *= v;
    }
}";
            CompileAndVerifyIL(source, "C.M",
@"
{
  // Code size      292 (0x124)
  .maxstack  14
  .locals init (object V_0,
                object V_1,
                int V_2)
  IL_0000:  ldarg.1
  IL_0001:  stloc.0
  IL_0002:  ldarg.2
  IL_0003:  stloc.1
  IL_0004:  ldarg.0
  IL_0005:  call       ""int C.f()""
  IL_000a:  stloc.2
  IL_000b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__1.<>p__2""
  IL_0010:  brtrue.s   IL_005e
  IL_0012:  ldc.i4     0x80
  IL_0017:  ldtoken    ""C""
  IL_001c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0021:  ldc.i4.4
  IL_0022:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0027:  dup
  IL_0028:  ldc.i4.0
  IL_0029:  ldc.i4.0
  IL_002a:  ldnull
  IL_002b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0030:  stelem.ref
  IL_0031:  dup
  IL_0032:  ldc.i4.1
  IL_0033:  ldc.i4.0
  IL_0034:  ldnull
  IL_0035:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003a:  stelem.ref
  IL_003b:  dup
  IL_003c:  ldc.i4.2
  IL_003d:  ldc.i4.1
  IL_003e:  ldnull
  IL_003f:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0044:  stelem.ref
  IL_0045:  dup
  IL_0046:  ldc.i4.3
  IL_0047:  ldc.i4.0
  IL_0048:  ldnull
  IL_0049:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004e:  stelem.ref
  IL_004f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0054:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0059:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__1.<>p__2""
  IL_005e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__1.<>p__2""
  IL_0063:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>>.Target""
  IL_0068:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__1.<>p__2""
  IL_006d:  ldloc.0
  IL_006e:  ldloc.1
  IL_006f:  ldloc.2
  IL_0070:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_0075:  brtrue.s   IL_00ad
  IL_0077:  ldc.i4.0
  IL_0078:  ldc.i4.s   69
  IL_007a:  ldtoken    ""C""
  IL_007f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0084:  ldc.i4.2
  IL_0085:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_008a:  dup
  IL_008b:  ldc.i4.0
  IL_008c:  ldc.i4.0
  IL_008d:  ldnull
  IL_008e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0093:  stelem.ref
  IL_0094:  dup
  IL_0095:  ldc.i4.1
  IL_0096:  ldc.i4.0
  IL_0097:  ldnull
  IL_0098:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_009d:  stelem.ref
  IL_009e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00a3:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00a8:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_00ad:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_00b2:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00b7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_00bc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__1.<>p__0""
  IL_00c1:  brtrue.s   IL_0101
  IL_00c3:  ldc.i4.0
  IL_00c4:  ldtoken    ""C""
  IL_00c9:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00ce:  ldc.i4.3
  IL_00cf:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00d4:  dup
  IL_00d5:  ldc.i4.0
  IL_00d6:  ldc.i4.0
  IL_00d7:  ldnull
  IL_00d8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00dd:  stelem.ref
  IL_00de:  dup
  IL_00df:  ldc.i4.1
  IL_00e0:  ldc.i4.0
  IL_00e1:  ldnull
  IL_00e2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00e7:  stelem.ref
  IL_00e8:  dup
  IL_00e9:  ldc.i4.2
  IL_00ea:  ldc.i4.1
  IL_00eb:  ldnull
  IL_00ec:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00f1:  stelem.ref
  IL_00f2:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00f7:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00fc:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__1.<>p__0""
  IL_0101:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__1.<>p__0""
  IL_0106:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>>.Target""
  IL_010b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__1.<>p__0""
  IL_0110:  ldloc.0
  IL_0111:  ldloc.1
  IL_0112:  ldloc.2
  IL_0113:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int)""
  IL_0118:  ldarg.3
  IL_0119:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_011e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int, object)""
  IL_0123:  ret
}
");
#if TODO // locals and parameters shouldn't be spilled
@"{
  // Code size      288 (0x120)
  .maxstack  14
  .locals init (int V_0)
  IL_0000:  ldarg.0
  IL_0001:  call       ""int C.f()""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__0.<>p__2""
  IL_000c:  brtrue.s   IL_005a
  IL_000e:  ldc.i4     0x80
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  ldc.i4.4
  IL_001e:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0023:  dup
  IL_0024:  ldc.i4.0
  IL_0025:  ldc.i4.0
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.0
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  dup
  IL_0038:  ldc.i4.2
  IL_0039:  ldc.i4.1
  IL_003a:  ldnull
  IL_003b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0040:  stelem.ref
  IL_0041:  dup
  IL_0042:  ldc.i4.3
  IL_0043:  ldc.i4.0
  IL_0044:  ldnull
  IL_0045:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_004a:  stelem.ref
  IL_004b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0050:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0055:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__0.<>p__2""
  IL_005a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__0.<>p__2""
  IL_005f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>>.Target""
  IL_0064:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>> C.<>o__0.<>p__2""
  IL_0069:  ldarg.1
  IL_006a:  ldarg.2
  IL_006b:  ldloc.0
  IL_006c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_0071:  brtrue.s   IL_00a9
  IL_0073:  ldc.i4.0
  IL_0074:  ldc.i4.s   69
  IL_0076:  ldtoken    ""C""
  IL_007b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0080:  ldc.i4.2
  IL_0081:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0086:  dup
  IL_0087:  ldc.i4.0
  IL_0088:  ldc.i4.0
  IL_0089:  ldnull
  IL_008a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_008f:  stelem.ref
  IL_0090:  dup
  IL_0091:  ldc.i4.1
  IL_0092:  ldc.i4.0
  IL_0093:  ldnull
  IL_0094:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0099:  stelem.ref
  IL_009a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_009f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00a4:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_00a9:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_00ae:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00b3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__1""
  IL_00b8:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__0.<>p__0""
  IL_00bd:  brtrue.s   IL_00fd
  IL_00bf:  ldc.i4.0
  IL_00c0:  ldtoken    ""C""
  IL_00c5:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00ca:  ldc.i4.3
  IL_00cb:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00d0:  dup
  IL_00d1:  ldc.i4.0
  IL_00d2:  ldc.i4.0
  IL_00d3:  ldnull
  IL_00d4:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00d9:  stelem.ref
  IL_00da:  dup
  IL_00db:  ldc.i4.1
  IL_00dc:  ldc.i4.0
  IL_00dd:  ldnull
  IL_00de:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00e3:  stelem.ref
  IL_00e4:  dup
  IL_00e5:  ldc.i4.2
  IL_00e6:  ldc.i4.1
  IL_00e7:  ldnull
  IL_00e8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ed:  stelem.ref
  IL_00ee:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00f3:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00f8:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__0.<>p__0""
  IL_00fd:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__0.<>p__0""
  IL_0102:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>>.Target""
  IL_0107:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>> C.<>o__0.<>p__0""
  IL_010c:  ldarg.1
  IL_010d:  ldarg.2
  IL_010e:  ldloc.0
  IL_010f:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int)""
  IL_0114:  ldarg.3
  IL_0115:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_011a:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object, int, object)""
  IL_011f:  ret
}
");
#endif
        }

        [Fact]
        public void CompoundStaticIndexerAssignment()
        {
            string source = @"
public class C
{
    public dynamic this[int a, object o] { get { return null; } set { } }

    public int f() { return 1; }

    public dynamic M(C c, dynamic v)
    {
        return c[f(), null] *= v;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      111 (0x6f)
  .maxstack  11
  .locals init (C V_0,
                int V_1,
                object V_2)
  IL_0000:  ldarg.1
  IL_0001:  stloc.0
  IL_0002:  ldarg.0
  IL_0003:  call       ""int C.f()""
  IL_0008:  stloc.1
  IL_0009:  ldloc.0
  IL_000a:  ldloc.1
  IL_000b:  ldnull
  IL_000c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__4.<>p__0""
  IL_0011:  brtrue.s   IL_0049
  IL_0013:  ldc.i4.0
  IL_0014:  ldc.i4.s   69
  IL_0016:  ldtoken    ""C""
  IL_001b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0020:  ldc.i4.2
  IL_0021:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0026:  dup
  IL_0027:  ldc.i4.0
  IL_0028:  ldc.i4.0
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  dup
  IL_0031:  ldc.i4.1
  IL_0032:  ldc.i4.0
  IL_0033:  ldnull
  IL_0034:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0039:  stelem.ref
  IL_003a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0044:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__4.<>p__0""
  IL_0049:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__4.<>p__0""
  IL_004e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0053:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__4.<>p__0""
  IL_0058:  ldloc.0
  IL_0059:  ldloc.1
  IL_005a:  ldnull
  IL_005b:  callvirt   ""dynamic C.this[int, object].get""
  IL_0060:  ldarg.2
  IL_0061:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0066:  dup
  IL_0067:  stloc.2
  IL_0068:  callvirt   ""void C.this[int, object].set""
  IL_006d:  ldloc.2
  IL_006e:  ret
}");
#if TODO // locals and parameters shouldn't be spilled       
@"
{
  // Code size      109 (0x6d)
  .maxstack  11
  .locals init (int V_0,
  object V_1)
  IL_0000:  ldarg.0
  IL_0001:  call       ""int C.f()""
  IL_0006:  stloc.0
  IL_0007:  ldarg.1
  IL_0008:  ldloc.0
  IL_0009:  ldnull
  IL_000a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_000f:  brtrue.s   IL_0047
  IL_0011:  ldc.i4.0
  IL_0012:  ldc.i4.s   69
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.2
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  dup
  IL_002f:  ldc.i4.1
  IL_0030:  ldc.i4.0
  IL_0031:  ldnull
  IL_0032:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0037:  stelem.ref
  IL_0038:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003d:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0042:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_004c:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0051:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_0056:  ldarg.1
  IL_0057:  ldloc.0
  IL_0058:  ldnull
  IL_0059:  callvirt   ""dynamic C.this[int, object].get""
  IL_005e:  ldarg.2
  IL_005f:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0064:  dup
  IL_0065:  stloc.1
  IL_0066:  callvirt   ""void C.this[int, object].set""
  IL_006b:  ldloc.1
  IL_006c:  ret
}
");
#endif
        }

        [Fact]
        public void CompoundDynamicIndexerAssignment_ByRef()
        {
            string source = @"
public class C
{
    public dynamic Field;
    public C c;

    public C f()
    {
        return this;
    }

    public dynamic M(dynamic d, dynamic v)
    {
        int[] b = null;
        return d[ref f().Field, out b[10], c.c] *= v;
    }
}";
            // Dev11 emits different (unverifiable) code

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      342 (0x156)
  .maxstack  15
  .locals init (object V_0,
                object& V_1,
                int& V_2,
                C V_3)
  IL_0000:  ldnull
  IL_0001:  ldarg.1
  IL_0002:  stloc.0
  IL_0003:  ldarg.0
  IL_0004:  call       ""C C.f()""
  IL_0009:  ldflda     ""dynamic C.Field""
  IL_000e:  stloc.1
  IL_000f:  ldc.i4.s   10
  IL_0011:  ldelema    ""int""
  IL_0016:  stloc.2
  IL_0017:  ldarg.0
  IL_0018:  ldfld      ""C C.c""
  IL_001d:  ldfld      ""C C.c""
  IL_0022:  stloc.3
  IL_0023:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>> C.<>o__3.<>p__2""
  IL_0028:  brtrue.s   IL_0082
  IL_002a:  ldc.i4     0x80
  IL_002f:  ldtoken    ""C""
  IL_0034:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0039:  ldc.i4.5
  IL_003a:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_003f:  dup
  IL_0040:  ldc.i4.0
  IL_0041:  ldc.i4.0
  IL_0042:  ldnull
  IL_0043:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0048:  stelem.ref
  IL_0049:  dup
  IL_004a:  ldc.i4.1
  IL_004b:  ldc.i4.s   9
  IL_004d:  ldnull
  IL_004e:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0053:  stelem.ref
  IL_0054:  dup
  IL_0055:  ldc.i4.2
  IL_0056:  ldc.i4.s   17
  IL_0058:  ldnull
  IL_0059:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005e:  stelem.ref
  IL_005f:  dup
  IL_0060:  ldc.i4.3
  IL_0061:  ldc.i4.1
  IL_0062:  ldnull
  IL_0063:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0068:  stelem.ref
  IL_0069:  dup
  IL_006a:  ldc.i4.4
  IL_006b:  ldc.i4.0
  IL_006c:  ldnull
  IL_006d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0072:  stelem.ref
  IL_0073:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0078:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>> System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007d:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>> C.<>o__3.<>p__2""
  IL_0082:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>> C.<>o__3.<>p__2""
  IL_0087:  ldfld      ""<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object> System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>>.Target""
  IL_008c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>> C.<>o__3.<>p__2""
  IL_0091:  ldloc.0
  IL_0092:  ldloc.1
  IL_0093:  ldloc.2
  IL_0094:  ldloc.3
  IL_0095:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__1""
  IL_009a:  brtrue.s   IL_00d2
  IL_009c:  ldc.i4.0
  IL_009d:  ldc.i4.s   69
  IL_009f:  ldtoken    ""C""
  IL_00a4:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00a9:  ldc.i4.2
  IL_00aa:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00af:  dup
  IL_00b0:  ldc.i4.0
  IL_00b1:  ldc.i4.0
  IL_00b2:  ldnull
  IL_00b3:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b8:  stelem.ref
  IL_00b9:  dup
  IL_00ba:  ldc.i4.1
  IL_00bb:  ldc.i4.0
  IL_00bc:  ldnull
  IL_00bd:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c2:  stelem.ref
  IL_00c3:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00c8:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00cd:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__1""
  IL_00d2:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__1""
  IL_00d7:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00dc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__3.<>p__1""
  IL_00e1:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>> C.<>o__3.<>p__0""
  IL_00e6:  brtrue.s   IL_0132
  IL_00e8:  ldc.i4.0
  IL_00e9:  ldtoken    ""C""
  IL_00ee:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00f3:  ldc.i4.4
  IL_00f4:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00f9:  dup
  IL_00fa:  ldc.i4.0
  IL_00fb:  ldc.i4.0
  IL_00fc:  ldnull
  IL_00fd:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0102:  stelem.ref
  IL_0103:  dup
  IL_0104:  ldc.i4.1
  IL_0105:  ldc.i4.s   9
  IL_0107:  ldnull
  IL_0108:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_010d:  stelem.ref
  IL_010e:  dup
  IL_010f:  ldc.i4.2
  IL_0110:  ldc.i4.s   17
  IL_0112:  ldnull
  IL_0113:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0118:  stelem.ref
  IL_0119:  dup
  IL_011a:  ldc.i4.3
  IL_011b:  ldc.i4.1
  IL_011c:  ldnull
  IL_011d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0122:  stelem.ref
  IL_0123:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetIndex(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0128:  call       ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>> System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_012d:  stsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>> C.<>o__3.<>p__0""
  IL_0132:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>> C.<>o__3.<>p__0""
  IL_0137:  ldfld      ""<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object> System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>>.Target""
  IL_013c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<<>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>> C.<>o__3.<>p__0""
  IL_0141:  ldloc.0
  IL_0142:  ldloc.1
  IL_0143:  ldloc.2
  IL_0144:  ldloc.3
  IL_0145:  callvirt   ""object <>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, ref object, ref int, C)""
  IL_014a:  ldarg.2
  IL_014b:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_0150:  callvirt   ""object <>F{00000240}<System.Runtime.CompilerServices.CallSite, object, object, int, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, ref object, ref int, C, object)""
  IL_0155:  ret
}");
        }

        [Fact]
        public void CompoundDynamicArrayElementAccess()
        {
            string source = @"
public class C
{
    static dynamic[] d;
    static string s;
        
    static void M()
    {
        d[0] += s;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       99 (0x63)
  .maxstack  10
  .locals init (object[] V_0)
  IL_0000:  ldsfld     ""dynamic[] C.d""
  IL_0005:  stloc.0
  IL_0006:  ldloc.0
  IL_0007:  ldc.i4.0
  IL_0008:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>> C.<>o__2.<>p__0""
  IL_000d:  brtrue.s   IL_0045
  IL_000f:  ldc.i4.0
  IL_0010:  ldc.i4.s   63
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  ldc.i4.2
  IL_001d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0022:  dup
  IL_0023:  ldc.i4.0
  IL_0024:  ldc.i4.0
  IL_0025:  ldnull
  IL_0026:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002b:  stelem.ref
  IL_002c:  dup
  IL_002d:  ldc.i4.1
  IL_002e:  ldc.i4.1
  IL_002f:  ldnull
  IL_0030:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0035:  stelem.ref
  IL_0036:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003b:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0040:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>> C.<>o__2.<>p__0""
  IL_0045:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>> C.<>o__2.<>p__0""
  IL_004a:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, string, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>>.Target""
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>> C.<>o__2.<>p__0""
  IL_0054:  ldloc.0
  IL_0055:  ldc.i4.0
  IL_0056:  ldelem.ref
  IL_0057:  ldsfld     ""string C.s""
  IL_005c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, string, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, string)""
  IL_0061:  stelem.ref
  IL_0062:  ret
}
");
        }

        [Fact]
        public void CompoundAssignment_WithDynamicConversion_ToStruct()
        {
            string source = @"
class C
{
    dynamic d = null;

    public void M()
    {
        bool ret = true;		
        ret &= (1 == d);		
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      238 (0xee)
  .maxstack  13
  .locals init (bool V_0) //ret
  IL_0000:  ldc.i4.1
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__2""
  IL_0007:  brtrue.s   IL_002e
  IL_0009:  ldc.i4.s   16
  IL_000b:  ldtoken    ""bool""
  IL_0010:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0015:  ldtoken    ""C""
  IL_001a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0029:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__2""
  IL_002e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__2""
  IL_0033:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0038:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__1.<>p__2""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__1""
  IL_0042:  brtrue.s   IL_007a
  IL_0044:  ldc.i4.0
  IL_0045:  ldc.i4.s   64
  IL_0047:  ldtoken    ""C""
  IL_004c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0051:  ldc.i4.2
  IL_0052:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0057:  dup
  IL_0058:  ldc.i4.0
  IL_0059:  ldc.i4.1
  IL_005a:  ldnull
  IL_005b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0060:  stelem.ref
  IL_0061:  dup
  IL_0062:  ldc.i4.1
  IL_0063:  ldc.i4.0
  IL_0064:  ldnull
  IL_0065:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006a:  stelem.ref
  IL_006b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0070:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0075:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__1""
  IL_007a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__1""
  IL_007f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Target""
  IL_0084:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__1.<>p__1""
  IL_0089:  ldloc.0
  IL_008a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_008f:  brtrue.s   IL_00c7
  IL_0091:  ldc.i4.0
  IL_0092:  ldc.i4.s   13
  IL_0094:  ldtoken    ""C""
  IL_0099:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_009e:  ldc.i4.2
  IL_009f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00a4:  dup
  IL_00a5:  ldc.i4.0
  IL_00a6:  ldc.i4.3
  IL_00a7:  ldnull
  IL_00a8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ad:  stelem.ref
  IL_00ae:  dup
  IL_00af:  ldc.i4.1
  IL_00b0:  ldc.i4.0
  IL_00b1:  ldnull
  IL_00b2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b7:  stelem.ref
  IL_00b8:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00bd:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00c2:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_00c7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_00cc:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>>.Target""
  IL_00d1:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_00d6:  ldc.i4.1
  IL_00d7:  ldarg.0
  IL_00d8:  ldfld      ""dynamic C.d""
  IL_00dd:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, int, object)""
  IL_00e2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, bool, object)""
  IL_00e7:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00ec:  stloc.0
  IL_00ed:  ret
}
");
        }

        [Fact]
        public void CompoundAssignment_WithDynamicConversion_ToClass()
        {
            string source = @"
class C
{
    dynamic d = null;

    public void M()
    {
        C ret = null;		
        ret &= (1 == d);		
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"      
{
  // Code size      238 (0xee)
  .maxstack  13
  .locals init (C V_0) //ret
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__2""
  IL_0007:  brtrue.s   IL_002e
  IL_0009:  ldc.i4.s   16
  IL_000b:  ldtoken    ""C""
  IL_0010:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0015:  ldtoken    ""C""
  IL_001a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0024:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0029:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__2""
  IL_002e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__2""
  IL_0033:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, C> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>>.Target""
  IL_0038:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__2""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__1.<>p__1""
  IL_0042:  brtrue.s   IL_007a
  IL_0044:  ldc.i4.0
  IL_0045:  ldc.i4.s   64
  IL_0047:  ldtoken    ""C""
  IL_004c:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0051:  ldc.i4.2
  IL_0052:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0057:  dup
  IL_0058:  ldc.i4.0
  IL_0059:  ldc.i4.1
  IL_005a:  ldnull
  IL_005b:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0060:  stelem.ref
  IL_0061:  dup
  IL_0062:  ldc.i4.1
  IL_0063:  ldc.i4.0
  IL_0064:  ldnull
  IL_0065:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006a:  stelem.ref
  IL_006b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0070:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0075:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__1.<>p__1""
  IL_007a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__1.<>p__1""
  IL_007f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, C, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>>.Target""
  IL_0084:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>> C.<>o__1.<>p__1""
  IL_0089:  ldloc.0
  IL_008a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_008f:  brtrue.s   IL_00c7
  IL_0091:  ldc.i4.0
  IL_0092:  ldc.i4.s   13
  IL_0094:  ldtoken    ""C""
  IL_0099:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_009e:  ldc.i4.2
  IL_009f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00a4:  dup
  IL_00a5:  ldc.i4.0
  IL_00a6:  ldc.i4.3
  IL_00a7:  ldnull
  IL_00a8:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ad:  stelem.ref
  IL_00ae:  dup
  IL_00af:  ldc.i4.1
  IL_00b0:  ldc.i4.0
  IL_00b1:  ldnull
  IL_00b2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00b7:  stelem.ref
  IL_00b8:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00bd:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00c2:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_00c7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_00cc:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>>.Target""
  IL_00d1:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_00d6:  ldc.i4.1
  IL_00d7:  ldarg.0
  IL_00d8:  ldfld      ""dynamic C.d""
  IL_00dd:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, int, object)""
  IL_00e2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, C, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object)""
  IL_00e7:  callvirt   ""C System.Func<System.Runtime.CompilerServices.CallSite, object, C>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00ec:  stloc.0
  IL_00ed:  ret
}
");
        }

        [Fact]
        public void CompoundAssignment_WithDynamicConversion_ToPointer()
        {
            string source = @"
class C
{
    dynamic d = null;

    public unsafe void M()
    {
        int* ret = null;
        ret &= (1 == d);		
    }
}
";
            CreateCompilation(source, options: TestOptions.UnsafeReleaseDll).VerifyDiagnostics(
                // (9,3): error CS0019: Operator '&=' cannot be applied to operands of type 'int*' and 'dynamic'
                Diagnostic(ErrorCode.ERR_BadBinaryOps, "ret &= (1 == d)").WithArguments("&=", "int*", "dynamic"));
        }

        [Fact]
        public void CompoundAssignment_WithNoDynamicConversion_Object()
        {
            string source = @"
class C
{
    dynamic d = null;

    public void M()
    {
        object ret = null;		
        ret &= (1 == d);		
    }
}
";
            CompileAndVerifyIL(source, "C.M", @" 
{
  // Code size      174 (0xae)
  .maxstack  11
  .locals init (object V_0) //ret
  IL_0000:  ldnull
  IL_0001:  stloc.0
  IL_0002:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_0007:  brtrue.s   IL_003f
  IL_0009:  ldc.i4.0
  IL_000a:  ldc.i4.s   64
  IL_000c:  ldtoken    ""C""
  IL_0011:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0016:  ldc.i4.2
  IL_0017:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_001c:  dup
  IL_001d:  ldc.i4.0
  IL_001e:  ldc.i4.1
  IL_001f:  ldnull
  IL_0020:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0025:  stelem.ref
  IL_0026:  dup
  IL_0027:  ldc.i4.1
  IL_0028:  ldc.i4.0
  IL_0029:  ldnull
  IL_002a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002f:  stelem.ref
  IL_0030:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0035:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_003a:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_003f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_0044:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_0049:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__1.<>p__1""
  IL_004e:  ldloc.0
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_0054:  brtrue.s   IL_008c
  IL_0056:  ldc.i4.0
  IL_0057:  ldc.i4.s   13
  IL_0059:  ldtoken    ""C""
  IL_005e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0063:  ldc.i4.2
  IL_0064:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0069:  dup
  IL_006a:  ldc.i4.0
  IL_006b:  ldc.i4.3
  IL_006c:  ldnull
  IL_006d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0072:  stelem.ref
  IL_0073:  dup
  IL_0074:  ldc.i4.1
  IL_0075:  ldc.i4.0
  IL_0076:  ldnull
  IL_0077:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007c:  stelem.ref
  IL_007d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0082:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0087:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_008c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_0091:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, int, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>>.Target""
  IL_0096:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>> C.<>o__1.<>p__0""
  IL_009b:  ldc.i4.1
  IL_009c:  ldarg.0
  IL_009d:  ldfld      ""dynamic C.d""
  IL_00a2:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, int, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, int, object)""
  IL_00a7:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00ac:  stloc.0
  IL_00ad:  ret
}
");
        }

        [Fact]
        public void CompoundAssignment_UserDefinedOperator()
        {
            string source = @"
class C 
{
    public static dynamic operator +(C lhs, int rhs)
    {
        return null;
    }

    static void M()
    {
        C c = new C();
        c += 2;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       78 (0x4e)
  .maxstack  4
  .locals init (C V_0) //c
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__0""
  IL_000b:  brtrue.s   IL_0031
  IL_000d:  ldc.i4.0
  IL_000e:  ldtoken    ""C""
  IL_0013:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0018:  ldtoken    ""C""
  IL_001d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0022:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0027:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__0""
  IL_0031:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__0""
  IL_0036:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, C> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>>.Target""
  IL_003b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, C>> C.<>o__1.<>p__0""
  IL_0040:  ldloc.0
  IL_0041:  ldc.i4.2
  IL_0042:  call       ""dynamic C.op_Addition(C, int)""
  IL_0047:  callvirt   ""C System.Func<System.Runtime.CompilerServices.CallSite, object, C>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_004c:  stloc.0
  IL_004d:  ret
}
");
        }

        [Fact]
        public void CompoundAssignment_Result()
        {
            string source = @"
class C
{
    bool a = true;
    bool b = true;
    dynamic d = null;
    
    int M()
    {
        if ((a &= d) != b)
        {
            return 1;
        }

        return 2;
    }
}
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      178 (0xb2)
  .maxstack  11
  .locals init (bool V_0)
  IL_0000:  ldarg.0
  IL_0001:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__3.<>p__1""
  IL_0006:  brtrue.s   IL_002d
  IL_0008:  ldc.i4.s   16
  IL_000a:  ldtoken    ""bool""
  IL_000f:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0028:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__3.<>p__1""
  IL_002d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__3.<>p__1""
  IL_0032:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0037:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__3.<>p__1""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__3.<>p__0""
  IL_0041:  brtrue.s   IL_0079
  IL_0043:  ldc.i4.0
  IL_0044:  ldc.i4.s   64
  IL_0046:  ldtoken    ""C""
  IL_004b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0050:  ldc.i4.2
  IL_0051:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0056:  dup
  IL_0057:  ldc.i4.0
  IL_0058:  ldc.i4.1
  IL_0059:  ldnull
  IL_005a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_005f:  stelem.ref
  IL_0060:  dup
  IL_0061:  ldc.i4.1
  IL_0062:  ldc.i4.0
  IL_0063:  ldnull
  IL_0064:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0069:  stelem.ref
  IL_006a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_006f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0074:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__3.<>p__0""
  IL_0079:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__3.<>p__0""
  IL_007e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>>.Target""
  IL_0083:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>> C.<>o__3.<>p__0""
  IL_0088:  ldarg.0
  IL_0089:  ldfld      ""bool C.a""
  IL_008e:  ldarg.0
  IL_008f:  ldfld      ""dynamic C.d""
  IL_0094:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, bool, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, bool, object)""
  IL_0099:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_009e:  dup
  IL_009f:  stloc.0
  IL_00a0:  stfld      ""bool C.a""
  IL_00a5:  ldloc.0
  IL_00a6:  ldarg.0
  IL_00a7:  ldfld      ""bool C.b""
  IL_00ac:  beq.s      IL_00b0
  IL_00ae:  ldc.i4.1
  IL_00af:  ret
  IL_00b0:  ldc.i4.2
  IL_00b1:  ret
}");
        }

        [Fact]
        public void CompoundAssignment_Nullable()
        {
            string source = @"
class C
{
    int M()
    {
        bool? b = true;
        dynamic d = null;

        if ((d &= null) != (b &= null))
        {
            return 1;
        }
        
        return 2;
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      278 (0x116)
  .maxstack  12
  .locals init (bool? V_0, //b
  object V_1, //d
  bool? V_2,
  bool? V_3)
  IL_0000:  ldloca.s   V_0
  IL_0002:  ldc.i4.1
  IL_0003:  call       ""bool?..ctor(bool)""
  IL_0008:  ldnull
  IL_0009:  stloc.1
  IL_000a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_000f:  brtrue.s   IL_003d
  IL_0011:  ldc.i4.0
  IL_0012:  ldc.i4.s   83
  IL_0014:  ldtoken    ""C""
  IL_0019:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001e:  ldc.i4.1
  IL_001f:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0024:  dup
  IL_0025:  ldc.i4.0
  IL_0026:  ldc.i4.0
  IL_0027:  ldnull
  IL_0028:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002d:  stelem.ref
  IL_002e:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.UnaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0033:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0038:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_003d:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_0042:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
  IL_0047:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>o__0.<>p__2""
  IL_004c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>> C.<>o__0.<>p__1""
  IL_0051:  brtrue.s   IL_0089
  IL_0053:  ldc.i4.0
  IL_0054:  ldc.i4.s   35
  IL_0056:  ldtoken    ""C""
  IL_005b:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0060:  ldc.i4.2
  IL_0061:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0066:  dup
  IL_0067:  ldc.i4.0
  IL_0068:  ldc.i4.0
  IL_0069:  ldnull
  IL_006a:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006f:  stelem.ref
  IL_0070:  dup
  IL_0071:  ldc.i4.1
  IL_0072:  ldc.i4.1
  IL_0073:  ldnull
  IL_0074:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0079:  stelem.ref
  IL_007a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_007f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0084:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>> C.<>o__0.<>p__1""
  IL_0089:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>> C.<>o__0.<>p__1""
  IL_008e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>>.Target""
  IL_0093:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>> C.<>o__0.<>p__1""
  IL_0098:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_009d:  brtrue.s   IL_00d5
  IL_009f:  ldc.i4.0
  IL_00a0:  ldc.i4.s   64
  IL_00a2:  ldtoken    ""C""
  IL_00a7:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00ac:  ldc.i4.2
  IL_00ad:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_00b2:  dup
  IL_00b3:  ldc.i4.0
  IL_00b4:  ldc.i4.0
  IL_00b5:  ldnull
  IL_00b6:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00bb:  stelem.ref
  IL_00bc:  dup
  IL_00bd:  ldc.i4.1
  IL_00be:  ldc.i4.2
  IL_00bf:  ldnull
  IL_00c0:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00c5:  stelem.ref
  IL_00c6:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.BinaryOperation(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Linq.Expressions.ExpressionType, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00cb:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00d0:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00d5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00da:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>>.Target""
  IL_00df:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>> C.<>o__0.<>p__0""
  IL_00e4:  ldloc.1
  IL_00e5:  ldnull
  IL_00e6:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, object)""
  IL_00eb:  dup
  IL_00ec:  stloc.1
  IL_00ed:  ldloc.0
  IL_00ee:  stloc.2
  IL_00ef:  ldloca.s   V_2
  IL_00f1:  call       ""bool bool?.GetValueOrDefault()""
  IL_00f6:  brtrue.s   IL_00fb
  IL_00f8:  ldloc.2
  IL_00f9:  br.s       IL_0104
  IL_00fb:  ldloca.s   V_3
  IL_00fd:  initobj    ""bool?""
  IL_0103:  ldloc.3
  IL_0104:  dup
  IL_0105:  stloc.0
  IL_0106:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, bool?, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, bool?)""
  IL_010b:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0110:  brfalse.s  IL_0114
  IL_0112:  ldc.i4.1
  IL_0113:  ret
  IL_0114:  ldc.i4.2
  IL_0115:  ret
}
");
        }

        [Fact]
        public void CompoundAssignment()
        {
            string source = @"
class C
{
    static void Main()
    {
        dynamic[] x = new string[] { ""hello"" };
        x[0] += ""!"";
        System.Console.Write(x[0]);
    }
}
";
            var comp = CompileAndVerifyWithMscorlib40(source, expectedOutput: "hello!", references: new[] { ValueTupleRef, SystemRuntimeFacadeRef, CSharpRef, SystemCoreRef });
            comp.VerifyDiagnostics();
            // No runtime failure (System.ArrayTypeMismatchException: Attempted to access an element as a type incompatible with the array.)
            // because of the special handling for dynamic in LocalRewriter.TransformCompoundAssignmentLHS
        }

        #endregion

        #region Object And Collection Initializers

        [Fact]
        public void DynamicObjectInitializer_Level2()
        {
            string source = @"
using System;

class C
{
    public dynamic A { get; set; }
        
    static void M()
    {
        var x = new C          
        {
            A = { B = 1 }
        };                                                   
    }
} 
";
            // Bug in Dev11: it boxes the constant literal (1) and the corresponding call-site parameter is typed to object.

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       99 (0x63)
  .maxstack  8
  .locals init (C V_0)
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__0""
  IL_000b:  brtrue.s   IL_0046
  IL_000d:  ldc.i4.0
  IL_000e:  ldstr      ""B""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  ldc.i4.2
  IL_001e:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0023:  dup
  IL_0024:  ldc.i4.0
  IL_0025:  ldc.i4.0
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  dup
  IL_002e:  ldc.i4.1
  IL_002f:  ldc.i4.3
  IL_0030:  ldnull
  IL_0031:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0036:  stelem.ref
  IL_0037:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0041:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__0""
  IL_0046:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__0""
  IL_004b:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_0050:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__0""
  IL_0055:  ldloc.0
  IL_0056:  callvirt   ""dynamic C.A.get""
  IL_005b:  ldc.i4.1
  IL_005c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_0061:  pop
  IL_0062:  ret
}");
        }

        /// <summary>
        /// We can shared dynamic sites for GetMembers of level n-1 on level n for n >= 3.
        /// </summary>
        [Fact]
        public void DynamicObjectInitializer_Level3()
        {
            string source = @"
using System;

class C
{
    public dynamic A { get; set; }
        
    static void M()
    {
        var x = new C          
        {
            A = { B = { P = 1, Q = 2 } }
        };                                                   
    }
} 
";
            // Dev11 creates 4 call sites: GetMember[B] #1, SetMember[P], GetMember[B] #2, SetMember[Q] and calls them as follows:
            // var c = new C();
            // SetMember[P](GetMember[B](c) #1, 1)
            // SetMember[Q](GetMember[B](c) #2, 2)
            //
            // To maintain runtime compatibility we have to invoke GetMember[B] twice, but we can reuse the call-site:
            // We create 3 call sites: GetMember[B] #1, SetMember[P], SetMember[Q]
            // var c = new C();
            // SetMember[P](GetMember[B](c) #1, 1)
            // SetMember[Q](GetMember[B](c) #1, 2)
            // 
            // We initialize all sites up-front so that we are able to avoid duplication of call-site initialization.
            //
            // Also Dev11 emits flags (None, None) for SetMember[P], while Roslyn emits (None, UseCompileTimeType | Constant) since the RHS is a constant.

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      285 (0x11d)
  .maxstack  8
  .locals init (C V_0)
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__4.<>p__0""
  IL_000b:  brtrue.s   IL_003c
  IL_000d:  ldc.i4.0
  IL_000e:  ldstr      ""B""
  IL_0013:  ldtoken    ""C""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  ldc.i4.1
  IL_001e:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0023:  dup
  IL_0024:  ldc.i4.0
  IL_0025:  ldc.i4.0
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0032:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0037:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__4.<>p__0""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__1""
  IL_0041:  brtrue.s   IL_007c
  IL_0043:  ldc.i4.0
  IL_0044:  ldstr      ""P""
  IL_0049:  ldtoken    ""C""
  IL_004e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0053:  ldc.i4.2
  IL_0054:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0059:  dup
  IL_005a:  ldc.i4.0
  IL_005b:  ldc.i4.0
  IL_005c:  ldnull
  IL_005d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0062:  stelem.ref
  IL_0063:  dup
  IL_0064:  ldc.i4.1
  IL_0065:  ldc.i4.3
  IL_0066:  ldnull
  IL_0067:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_006c:  stelem.ref
  IL_006d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0077:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__1""
  IL_007c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__2""
  IL_0081:  brtrue.s   IL_00bc
  IL_0083:  ldc.i4.0
  IL_0084:  ldstr      ""Q""
  IL_0089:  ldtoken    ""C""
  IL_008e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0093:  ldc.i4.2
  IL_0094:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0099:  dup
  IL_009a:  ldc.i4.0
  IL_009b:  ldc.i4.0
  IL_009c:  ldnull
  IL_009d:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00a2:  stelem.ref
  IL_00a3:  dup
  IL_00a4:  ldc.i4.1
  IL_00a5:  ldc.i4.3
  IL_00a6:  ldnull
  IL_00a7:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_00ac:  stelem.ref
  IL_00ad:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.SetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_00b2:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_00b7:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__2""
  IL_00bc:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__1""
  IL_00c1:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_00c6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__1""
  IL_00cb:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__4.<>p__0""
  IL_00d0:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_00d5:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__4.<>p__0""
  IL_00da:  ldloc.0
  IL_00db:  callvirt   ""dynamic C.A.get""
  IL_00e0:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00e5:  ldc.i4.1
  IL_00e6:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_00eb:  pop
  IL_00ec:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__2""
  IL_00f1:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>>.Target""
  IL_00f6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>> C.<>o__4.<>p__2""
  IL_00fb:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__4.<>p__0""
  IL_0100:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_0105:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__4.<>p__0""
  IL_010a:  ldloc.0
  IL_010b:  callvirt   ""dynamic C.A.get""
  IL_0110:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0115:  ldc.i4.2
  IL_0116:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, int, object>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_011b:  pop
  IL_011c:  ret
}
");
        }

        [Fact]
        public void DynamicCollectionInitializer_DynamicReceiver_InStaticMethod()
        {
            string source = @"
class C
{
    public dynamic A { get; set; }
        
    static void M()
    {
        var x = new C          
        {
            A = { { 1 } }
        };                                                   
    }
} 
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      103 (0x67)
  .maxstack  9
  .locals init (C V_0)
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_000b:  brtrue.s   IL_004b
  IL_000d:  ldc.i4     0x100
  IL_0012:  ldstr      ""Add""
  IL_0017:  ldnull
  IL_0018:  ldtoken    ""C""
  IL_001d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0022:  ldc.i4.2
  IL_0023:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0028:  dup
  IL_0029:  ldc.i4.0
  IL_002a:  ldc.i4.0
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  dup
  IL_0033:  ldc.i4.1
  IL_0034:  ldc.i4.3
  IL_0035:  ldnull
  IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003b:  stelem.ref
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0041:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0046:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_0050:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_005a:  ldloc.0
  IL_005b:  callvirt   ""dynamic C.A.get""
  IL_0060:  ldc.i4.1
  IL_0061:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_0066:  ret
}
");
        }

        [Fact]
        public void DynamicCollectionInitializer_DynamicReceiver_InInstanceMethod()
        {
            string source = @"
class C
{
    public dynamic A { get; set; }
        
    void M()
    {
        var x = new C          
        {
            A = { { 1 } }
        };                                                   
    }
} 
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      103 (0x67)
  .maxstack  9
  .locals init (C V_0)
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_000b:  brtrue.s   IL_004b
  IL_000d:  ldc.i4     0x100
  IL_0012:  ldstr      ""Add""
  IL_0017:  ldnull
  IL_0018:  ldtoken    ""C""
  IL_001d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0022:  ldc.i4.2
  IL_0023:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0028:  dup
  IL_0029:  ldc.i4.0
  IL_002a:  ldc.i4.0
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  dup
  IL_0033:  ldc.i4.1
  IL_0034:  ldc.i4.3
  IL_0035:  ldnull
  IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003b:  stelem.ref
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0041:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0046:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_0050:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__4.<>p__0""
  IL_005a:  ldloc.0
  IL_005b:  callvirt   ""dynamic C.A.get""
  IL_0060:  ldc.i4.1
  IL_0061:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_0066:  ret
}
");
        }

        [Fact]
        public void DynamicCollectionInitializer_StaticReceiver()
        {
            string source = @"
using System.Collections;

class C : IEnumerable
{
    public IEnumerator GetEnumerator() { return null; }
    public void Add(int a) { }

    void M(dynamic d)
    {
        var x = new C          
        {
            { d }
        };                                                   
    }

    public void Add(long a) { }
}  
";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       98 (0x62)
  .maxstack  9
  .locals init (C V_0)
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object>> C.<>o__2.<>p__0""
  IL_000b:  brtrue.s   IL_004b
  IL_000d:  ldc.i4     0x100
  IL_0012:  ldstr      ""Add""
  IL_0017:  ldnull
  IL_0018:  ldtoken    ""C""
  IL_001d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0022:  ldc.i4.2
  IL_0023:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0028:  dup
  IL_0029:  ldc.i4.0
  IL_002a:  ldc.i4.1
  IL_002b:  ldnull
  IL_002c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0031:  stelem.ref
  IL_0032:  dup
  IL_0033:  ldc.i4.1
  IL_0034:  ldc.i4.0
  IL_0035:  ldnull
  IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_003b:  stelem.ref
  IL_003c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0041:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0046:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object>> C.<>o__2.<>p__0""
  IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object>> C.<>o__2.<>p__0""
  IL_0050:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, C, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object>>.Target""
  IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, C, object>> C.<>o__2.<>p__0""
  IL_005a:  ldloc.0
  IL_005b:  ldarg.1
  IL_005c:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, C, object>.Invoke(System.Runtime.CompilerServices.CallSite, C, object)""
  IL_0061:  ret
}
");
        }

        [Fact]
        public void ObjectAndCollectionInitializer()
        {
            string source = @"
using System;
using System.Collections.Generic;
 
class Program
{
    static void Main()
    {
        var c = new C { X = { Y = { 1 } } };
    }
}
 
class C
{
    public dynamic X = new X();
}
 
class X
{
    public List<int> Y;
}
";
            CompileAndVerifyIL(source, "Program.Main", @"
{
  // Code size      177 (0xb1)
  .maxstack  9
  .locals init (C V_0)
  IL_0000:  newobj     ""C..ctor()""
  IL_0005:  stloc.0
  IL_0006:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> Program.<>o__0.<>p__0""
  IL_000b:  brtrue.s   IL_003c
  IL_000d:  ldc.i4.0
  IL_000e:  ldstr      ""Y""
  IL_0013:  ldtoken    ""Program""
  IL_0018:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001d:  ldc.i4.1
  IL_001e:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0023:  dup
  IL_0024:  ldc.i4.0
  IL_0025:  ldc.i4.0
  IL_0026:  ldnull
  IL_0027:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_002c:  stelem.ref
  IL_002d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0032:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0037:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> Program.<>o__0.<>p__0""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> Program.<>o__0.<>p__1""
  IL_0041:  brtrue.s   IL_0081
  IL_0043:  ldc.i4     0x100
  IL_0048:  ldstr      ""Add""
  IL_004d:  ldnull
  IL_004e:  ldtoken    ""Program""
  IL_0053:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0058:  ldc.i4.2
  IL_0059:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_005e:  dup
  IL_005f:  ldc.i4.0
  IL_0060:  ldc.i4.0
  IL_0061:  ldnull
  IL_0062:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0067:  stelem.ref
  IL_0068:  dup
  IL_0069:  ldc.i4.1
  IL_006a:  ldc.i4.3
  IL_006b:  ldnull
  IL_006c:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0071:  stelem.ref
  IL_0072:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_0077:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_007c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> Program.<>o__0.<>p__1""
  IL_0081:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> Program.<>o__0.<>p__1""
  IL_0086:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_008b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, object, int>> Program.<>o__0.<>p__1""
  IL_0090:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> Program.<>o__0.<>p__0""
  IL_0095:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
  IL_009a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> Program.<>o__0.<>p__0""
  IL_009f:  ldloc.0
  IL_00a0:  ldfld      ""dynamic C.X""
  IL_00a5:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_00aa:  ldc.i4.1
  IL_00ab:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object, int)""
  IL_00b0:  ret
}
");
        }

        #endregion

        #region Foreach

        [Fact]
        public void ForEach_StaticallyTypedVariable()
        {
            string source = @"
class C
{
    void M(dynamic d)
    {
        foreach (int x in d) 
        {
            System.Console.WriteLine(x);
    }
    }
}";

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      175 (0xaf)
  .maxstack  3
  .locals init (System.Collections.IEnumerator V_0,
  System.IDisposable V_1)
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__0""
  IL_0005:  brtrue.s   IL_002b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""System.Collections.IEnumerable""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0021:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0026:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__0""
  IL_002b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__0""
  IL_0030:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>>.Target""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__0""
  IL_003a:  ldarg.1
  IL_003b:  callvirt   ""System.Collections.IEnumerable System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0040:  callvirt   ""System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()""
  IL_0045:  stloc.0
  .try
{
  IL_0046:  br.s       IL_0093
  IL_0048:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_004d:  brtrue.s   IL_0074
  IL_004f:  ldc.i4.s   16
  IL_0051:  ldtoken    ""int""
  IL_0056:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_005b:  ldtoken    ""C""
  IL_0060:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0065:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_006a:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_006f:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0074:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0079:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, int> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>>.Target""
  IL_007e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, int>> C.<>o__0.<>p__1""
  IL_0083:  ldloc.0
  IL_0084:  callvirt   ""object System.Collections.IEnumerator.Current.get""
  IL_0089:  callvirt   ""int System.Func<System.Runtime.CompilerServices.CallSite, object, int>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_008e:  call       ""void System.Console.WriteLine(int)""
  IL_0093:  ldloc.0
  IL_0094:  callvirt   ""bool System.Collections.IEnumerator.MoveNext()""
  IL_0099:  brtrue.s   IL_0048
  IL_009b:  leave.s    IL_00ae
}
  finally
{
  IL_009d:  ldloc.0
  IL_009e:  isinst     ""System.IDisposable""
  IL_00a3:  stloc.1
  IL_00a4:  ldloc.1
  IL_00a5:  brfalse.s  IL_00ad
  IL_00a7:  ldloc.1
  IL_00a8:  callvirt   ""void System.IDisposable.Dispose()""
  IL_00ad:  endfinally
}
  IL_00ae:  ret
}
");
        }

        [Fact]
        public void ForEach_ImplicitlyTypedVariable()
        {
            string source = @"
class C
{
    void M(dynamic d)
    {
        foreach (var x in d) 
        {
            System.Console.WriteLine(x);
        }
    }
}";

            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size      208 (0xd0)
  .maxstack  9
  .locals init (System.Collections.IEnumerator V_0,
  object V_1, //x
  System.IDisposable V_2)
  IL_0000:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__1""
  IL_0005:  brtrue.s   IL_002b
  IL_0007:  ldc.i4.0
  IL_0008:  ldtoken    ""System.Collections.IEnumerable""
  IL_000d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0012:  ldtoken    ""C""
  IL_0017:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_001c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0021:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0026:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__1""
  IL_002b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__1""
  IL_0030:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>>.Target""
  IL_0035:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>> C.<>o__0.<>p__1""
  IL_003a:  ldarg.1
  IL_003b:  callvirt   ""System.Collections.IEnumerable System.Func<System.Runtime.CompilerServices.CallSite, object, System.Collections.IEnumerable>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0040:  callvirt   ""System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()""
  IL_0045:  stloc.0
  .try
{
  IL_0046:  br.s       IL_00b4
  IL_0048:  ldloc.0
  IL_0049:  callvirt   ""object System.Collections.IEnumerator.Current.get""
  IL_004e:  stloc.1
  IL_004f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0054:  brtrue.s   IL_0095
  IL_0056:  ldc.i4     0x100
  IL_005b:  ldstr      ""WriteLine""
  IL_0060:  ldnull
  IL_0061:  ldtoken    ""C""
  IL_0066:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_006b:  ldc.i4.2
  IL_006c:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
  IL_0071:  dup
  IL_0072:  ldc.i4.0
  IL_0073:  ldc.i4.s   33
  IL_0075:  ldnull
  IL_0076:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_007b:  stelem.ref
  IL_007c:  dup
  IL_007d:  ldc.i4.1
  IL_007e:  ldc.i4.0
  IL_007f:  ldnull
  IL_0080:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
  IL_0085:  stelem.ref
  IL_0086:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
  IL_008b:  call       ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_0090:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_0095:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_009a:  ldfld      ""System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object> System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>>.Target""
  IL_009f:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>> C.<>o__0.<>p__0""
  IL_00a4:  ldtoken    ""System.Console""
  IL_00a9:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_00ae:  ldloc.1
  IL_00af:  callvirt   ""void System.Action<System.Runtime.CompilerServices.CallSite, System.Type, object>.Invoke(System.Runtime.CompilerServices.CallSite, System.Type, object)""
  IL_00b4:  ldloc.0
  IL_00b5:  callvirt   ""bool System.Collections.IEnumerator.MoveNext()""
  IL_00ba:  brtrue.s   IL_0048
  IL_00bc:  leave.s    IL_00cf
}
  finally
{
  IL_00be:  ldloc.0
  IL_00bf:  isinst     ""System.IDisposable""
  IL_00c4:  stloc.2
  IL_00c5:  ldloc.2
  IL_00c6:  brfalse.s  IL_00ce
  IL_00c8:  ldloc.2
  IL_00c9:  callvirt   ""void System.IDisposable.Dispose()""
  IL_00ce:  endfinally
}
  IL_00cf:  ret
}");
        }

        [WorkItem(2720, "https://github.com/dotnet/roslyn/issues/2720")]
        [Fact]
        public void ContextTypeInAsyncLambda()
        {
            string source = @"
using System;
using System.Threading.Tasks;

class C
{
    static void Main()
    {
        dynamic d = Task.FromResult(""a"");
        G(async () => await d());
    }

    static void G(Func<Task<object>> f)
    {
    }
}";

            CompileAndVerifyIL(source, "C.<>c__DisplayClass0_0.<<Main>b__0>d.System.Runtime.CompilerServices.IAsyncStateMachine.MoveNext()", @"
{
  // Code size      537 (0x219)
  .maxstack  10
  .locals init (int V_0,
                C.<>c__DisplayClass0_0 V_1,
                object V_2,
                object V_3,
                System.Runtime.CompilerServices.ICriticalNotifyCompletion V_4,
                System.Runtime.CompilerServices.INotifyCompletion V_5,
                System.Exception V_6)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""int C.<>c__DisplayClass0_0.<<Main>b__0>d.<>1__state""
  IL_0006:  stloc.0
  IL_0007:  ldarg.0
  IL_0008:  ldfld      ""C.<>c__DisplayClass0_0 C.<>c__DisplayClass0_0.<<Main>b__0>d.<>4__this""
  IL_000d:  stloc.1
  .try
  {
    IL_000e:  ldloc.0
    IL_000f:  brfalse    IL_0185
    IL_0014:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__0""
    IL_0019:  brtrue.s   IL_004b
    IL_001b:  ldc.i4.0
    IL_001c:  ldstr      ""GetAwaiter""
    IL_0021:  ldnull
    IL_0022:  ldtoken    ""C""
    IL_0027:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_002c:  ldc.i4.1
    IL_002d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_0032:  dup
    IL_0033:  ldc.i4.0
    IL_0034:  ldc.i4.0
    IL_0035:  ldnull
    IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_003b:  stelem.ref
    IL_003c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_0041:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0046:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__0""
    IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__0""
    IL_0050:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__0""
    IL_005a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
    IL_005f:  brtrue.s   IL_008b
    IL_0061:  ldc.i4.0
    IL_0062:  ldtoken    ""C""
    IL_0067:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_006c:  ldc.i4.1
    IL_006d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_0072:  dup
    IL_0073:  ldc.i4.0
    IL_0074:  ldc.i4.0
    IL_0075:  ldnull
    IL_0076:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_007b:  stelem.ref
    IL_007c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Invoke(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_0081:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0086:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
    IL_008b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
    IL_0090:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_0095:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>o__0.<>p__0""
    IL_009a:  ldloc.1
    IL_009b:  ldfld      ""dynamic C.<>c__DisplayClass0_0.d""
    IL_00a0:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_00a5:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_00aa:  stloc.3
    IL_00ab:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__2""
    IL_00b0:  brtrue.s   IL_00d7
    IL_00b2:  ldc.i4.s   16
    IL_00b4:  ldtoken    ""bool""
    IL_00b9:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_00be:  ldtoken    ""C""
    IL_00c3:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_00c8:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
    IL_00cd:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_00d2:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__2""
    IL_00d7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__2""
    IL_00dc:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
    IL_00e1:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__2""
    IL_00e6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__1""
    IL_00eb:  brtrue.s   IL_011c
    IL_00ed:  ldc.i4.0
    IL_00ee:  ldstr      ""IsCompleted""
    IL_00f3:  ldtoken    ""C""
    IL_00f8:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_00fd:  ldc.i4.1
    IL_00fe:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_0103:  dup
    IL_0104:  ldc.i4.0
    IL_0105:  ldc.i4.0
    IL_0106:  ldnull
    IL_0107:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_010c:  stelem.ref
    IL_010d:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_0112:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0117:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__1""
    IL_011c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__1""
    IL_0121:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_0126:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__1""
    IL_012b:  ldloc.3
    IL_012c:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_0131:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_0136:  brtrue.s   IL_019c
    IL_0138:  ldarg.0
    IL_0139:  ldc.i4.0
    IL_013a:  dup
    IL_013b:  stloc.0
    IL_013c:  stfld      ""int C.<>c__DisplayClass0_0.<<Main>b__0>d.<>1__state""
    IL_0141:  ldarg.0
    IL_0142:  ldloc.3
    IL_0143:  stfld      ""object C.<>c__DisplayClass0_0.<<Main>b__0>d.<>u__1""
    IL_0148:  ldloc.3
    IL_0149:  isinst     ""System.Runtime.CompilerServices.ICriticalNotifyCompletion""
    IL_014e:  stloc.s    V_4
    IL_0150:  ldloc.s    V_4
    IL_0152:  brtrue.s   IL_016f
    IL_0154:  ldloc.3
    IL_0155:  castclass  ""System.Runtime.CompilerServices.INotifyCompletion""
    IL_015a:  stloc.s    V_5
    IL_015c:  ldarg.0
    IL_015d:  ldflda     ""System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>t__builder""
    IL_0162:  ldloca.s   V_5
    IL_0164:  ldarg.0
    IL_0165:  call       ""void System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object>.AwaitOnCompleted<System.Runtime.CompilerServices.INotifyCompletion, C.<>c__DisplayClass0_0.<<Main>b__0>d>(ref System.Runtime.CompilerServices.INotifyCompletion, ref C.<>c__DisplayClass0_0.<<Main>b__0>d)""
    IL_016a:  ldnull
    IL_016b:  stloc.s    V_5
    IL_016d:  br.s       IL_017d
    IL_016f:  ldarg.0
    IL_0170:  ldflda     ""System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>t__builder""
    IL_0175:  ldloca.s   V_4
    IL_0177:  ldarg.0
    IL_0178:  call       ""void System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object>.AwaitUnsafeOnCompleted<System.Runtime.CompilerServices.ICriticalNotifyCompletion, C.<>c__DisplayClass0_0.<<Main>b__0>d>(ref System.Runtime.CompilerServices.ICriticalNotifyCompletion, ref C.<>c__DisplayClass0_0.<<Main>b__0>d)""
    IL_017d:  ldnull
    IL_017e:  stloc.s    V_4
    IL_0180:  leave      IL_0218
    IL_0185:  ldarg.0
    IL_0186:  ldfld      ""object C.<>c__DisplayClass0_0.<<Main>b__0>d.<>u__1""
    IL_018b:  stloc.3
    IL_018c:  ldarg.0
    IL_018d:  ldnull
    IL_018e:  stfld      ""object C.<>c__DisplayClass0_0.<<Main>b__0>d.<>u__1""
    IL_0193:  ldarg.0
    IL_0194:  ldc.i4.m1
    IL_0195:  dup
    IL_0196:  stloc.0
    IL_0197:  stfld      ""int C.<>c__DisplayClass0_0.<<Main>b__0>d.<>1__state""
    IL_019c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__3""
    IL_01a1:  brtrue.s   IL_01d3
    IL_01a3:  ldc.i4.0
    IL_01a4:  ldstr      ""GetResult""
    IL_01a9:  ldnull
    IL_01aa:  ldtoken    ""C""
    IL_01af:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_01b4:  ldc.i4.1
    IL_01b5:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_01ba:  dup
    IL_01bb:  ldc.i4.0
    IL_01bc:  ldc.i4.0
    IL_01bd:  ldnull
    IL_01be:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_01c3:  stelem.ref
    IL_01c4:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_01c9:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_01ce:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__3""
    IL_01d3:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__3""
    IL_01d8:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_01dd:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>o.<>p__3""
    IL_01e2:  ldloc.3
    IL_01e3:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_01e8:  stloc.2
    IL_01e9:  leave.s    IL_0204
  }
  catch System.Exception
  {
    IL_01eb:  stloc.s    V_6
    IL_01ed:  ldarg.0
    IL_01ee:  ldc.i4.s   -2
    IL_01f0:  stfld      ""int C.<>c__DisplayClass0_0.<<Main>b__0>d.<>1__state""
    IL_01f5:  ldarg.0
    IL_01f6:  ldflda     ""System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>t__builder""
    IL_01fb:  ldloc.s    V_6
    IL_01fd:  call       ""void System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object>.SetException(System.Exception)""
    IL_0202:  leave.s    IL_0218
  }
  IL_0204:  ldarg.0
  IL_0205:  ldc.i4.s   -2
  IL_0207:  stfld      ""int C.<>c__DisplayClass0_0.<<Main>b__0>d.<>1__state""
  IL_020c:  ldarg.0
  IL_020d:  ldflda     ""System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object> C.<>c__DisplayClass0_0.<<Main>b__0>d.<>t__builder""
  IL_0212:  ldloc.2
  IL_0213:  call       ""void System.Runtime.CompilerServices.AsyncTaskMethodBuilder<object>.SetResult(object)""
  IL_0218:  ret
}");
        }

        [WorkItem(5323, "https://github.com/dotnet/roslyn/issues/5323")]
        [Fact]
        public void DynamicUsingWithYield1()
        {
            var source =
@"
using System.Collections.Generic;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        foreach(var i in Iter())
        {
            System.Console.WriteLine(i);
        }
    }

    static IEnumerable<Task> Iter()
    {
        dynamic d = 123;

        using (var t = D(d))    
        {
            yield return t;
            t.Wait();
        }
    }

    static Task D(dynamic arg)
    {
            return Task.FromResult(1);
    }
}";
            var comp = CreateCompilationWithCSharp(source, options: TestOptions.ReleaseExe);

            CompileAndVerify(comp, expectedOutput: @"System.Threading.Tasks.Task`1[System.Int32]");

            comp = CreateCompilationWithCSharp(source, options: TestOptions.DebugExe);

            CompileAndVerify(comp, expectedOutput: @"System.Threading.Tasks.Task`1[System.Int32]");
        }

        [WorkItem(5323, "https://github.com/dotnet/roslyn/issues/5323")]
        [Fact]
        public void DynamicUsingWithYield2()
        {
            var source =
@"
using System.Collections.Generic;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        foreach(var i in Iter())
        {
            System.Console.WriteLine(i);
        }
    }

    static IEnumerable<Task> Iter()
    {
        dynamic d = 123;

        var t = D(d);
        using (t)    
        {
            yield return t;
            t.Wait();
        }
    }

    static Task D(dynamic arg)
    {
            return Task.FromResult(1);
    }
}";
            var comp = CreateCompilationWithCSharp(source, options: TestOptions.ReleaseExe);

            CompileAndVerify(comp, expectedOutput: @"System.Threading.Tasks.Task`1[System.Int32]");

            comp = CreateCompilationWithCSharp(source, options: TestOptions.DebugExe);

            CompileAndVerify(comp, expectedOutput: @"System.Threading.Tasks.Task`1[System.Int32]");
        }

        #endregion

        #region Using

        [Fact]
        public void UsingStatement()
        {
            string source = @"
using System;

class C
{
    dynamic d = null;
        
    void M()
    {
        using (dynamic u = d)  
        {
            Console.WriteLine();
        }
    }
}";
            CompileAndVerifyIL(source, "C.M", @"
{
  // Code size       90 (0x5a)
  .maxstack  3
  .locals init (object V_0, //u
                System.IDisposable V_1)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""dynamic C.d""
  IL_0006:  stloc.0
  IL_0007:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>> C.<>o__1.<>p__0""
  IL_000c:  brtrue.s   IL_0032
  IL_000e:  ldc.i4.0
  IL_000f:  ldtoken    ""System.IDisposable""
  IL_0014:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0019:  ldtoken    ""C""
  IL_001e:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
  IL_0023:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
  IL_0028:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
  IL_002d:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>> C.<>o__1.<>p__0""
  IL_0032:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>> C.<>o__1.<>p__0""
  IL_0037:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>>.Target""
  IL_003c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>> C.<>o__1.<>p__0""
  IL_0041:  ldloc.0
  IL_0042:  callvirt   ""System.IDisposable System.Func<System.Runtime.CompilerServices.CallSite, object, System.IDisposable>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
  IL_0047:  stloc.1
  .try
  {
    IL_0048:  call       ""void System.Console.WriteLine()""
    IL_004d:  leave.s    IL_0059
  }
  finally
  {
    IL_004f:  ldloc.1
    IL_0050:  brfalse.s  IL_0058
    IL_0052:  ldloc.1
    IL_0053:  callvirt   ""void System.IDisposable.Dispose()""
    IL_0058:  endfinally
  }
  IL_0059:  ret
}
");
        }

        #endregion

        #region Async

        [Fact]
        public void AwaitAwait()
        {
            string source = @"
using System;
using System.Threading.Tasks;

class C
{
    static dynamic d;

    static async void M() 
    {
        var x = await await d; 
    }
}";
            CompileAndVerifyIL(source, "C.<M>d__1.System.Runtime.CompilerServices.IAsyncStateMachine.MoveNext", @"
{
  // Code size      855 (0x357)
  .maxstack  10
  .locals init (int V_0,
                object V_1,
                object V_2,
                System.Runtime.CompilerServices.ICriticalNotifyCompletion V_3,
                System.Runtime.CompilerServices.INotifyCompletion V_4,
                System.Exception V_5)
  IL_0000:  ldarg.0
  IL_0001:  ldfld      ""int C.<M>d__1.<>1__state""
  IL_0006:  stloc.0
  .try
  {
    IL_0007:  ldloc.0
    IL_0008:  brfalse    IL_013c
    IL_000d:  ldloc.0
    IL_000e:  ldc.i4.1
    IL_000f:  beq        IL_02c4
    IL_0014:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__0""
    IL_0019:  brtrue.s   IL_004b
    IL_001b:  ldc.i4.0
    IL_001c:  ldstr      ""GetAwaiter""
    IL_0021:  ldnull
    IL_0022:  ldtoken    ""C""
    IL_0027:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_002c:  ldc.i4.1
    IL_002d:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_0032:  dup
    IL_0033:  ldc.i4.0
    IL_0034:  ldc.i4.0
    IL_0035:  ldnull
    IL_0036:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_003b:  stelem.ref
    IL_003c:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_0041:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0046:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__0""
    IL_004b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__0""
    IL_0050:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_0055:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__0""
    IL_005a:  ldsfld     ""dynamic C.d""
    IL_005f:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_0064:  stloc.2
    IL_0065:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__2""
    IL_006a:  brtrue.s   IL_0091
    IL_006c:  ldc.i4.s   16
    IL_006e:  ldtoken    ""bool""
    IL_0073:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_0078:  ldtoken    ""C""
    IL_007d:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_0082:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
    IL_0087:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_008c:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__2""
    IL_0091:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__2""
    IL_0096:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
    IL_009b:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__2""
    IL_00a0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__1""
    IL_00a5:  brtrue.s   IL_00d6
    IL_00a7:  ldc.i4.0
    IL_00a8:  ldstr      ""IsCompleted""
    IL_00ad:  ldtoken    ""C""
    IL_00b2:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_00b7:  ldc.i4.1
    IL_00b8:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_00bd:  dup
    IL_00be:  ldc.i4.0
    IL_00bf:  ldc.i4.0
    IL_00c0:  ldnull
    IL_00c1:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_00c6:  stelem.ref
    IL_00c7:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_00cc:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_00d1:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__1""
    IL_00d6:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__1""
    IL_00db:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_00e0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__1""
    IL_00e5:  ldloc.2
    IL_00e6:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_00eb:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_00f0:  brtrue.s   IL_0153
    IL_00f2:  ldarg.0
    IL_00f3:  ldc.i4.0
    IL_00f4:  dup
    IL_00f5:  stloc.0
    IL_00f6:  stfld      ""int C.<M>d__1.<>1__state""
    IL_00fb:  ldarg.0
    IL_00fc:  ldloc.2
    IL_00fd:  stfld      ""object C.<M>d__1.<>u__1""
    IL_0102:  ldloc.2
    IL_0103:  isinst     ""System.Runtime.CompilerServices.ICriticalNotifyCompletion""
    IL_0108:  stloc.3
    IL_0109:  ldloc.3
    IL_010a:  brtrue.s   IL_0127
    IL_010c:  ldloc.2
    IL_010d:  castclass  ""System.Runtime.CompilerServices.INotifyCompletion""
    IL_0112:  stloc.s    V_4
    IL_0114:  ldarg.0
    IL_0115:  ldflda     ""System.Runtime.CompilerServices.AsyncVoidMethodBuilder C.<M>d__1.<>t__builder""
    IL_011a:  ldloca.s   V_4
    IL_011c:  ldarg.0
    IL_011d:  call       ""void System.Runtime.CompilerServices.AsyncVoidMethodBuilder.AwaitOnCompleted<System.Runtime.CompilerServices.INotifyCompletion, C.<M>d__1>(ref System.Runtime.CompilerServices.INotifyCompletion, ref C.<M>d__1)""
    IL_0122:  ldnull
    IL_0123:  stloc.s    V_4
    IL_0125:  br.s       IL_0135
    IL_0127:  ldarg.0
    IL_0128:  ldflda     ""System.Runtime.CompilerServices.AsyncVoidMethodBuilder C.<M>d__1.<>t__builder""
    IL_012d:  ldloca.s   V_3
    IL_012f:  ldarg.0
    IL_0130:  call       ""void System.Runtime.CompilerServices.AsyncVoidMethodBuilder.AwaitUnsafeOnCompleted<System.Runtime.CompilerServices.ICriticalNotifyCompletion, C.<M>d__1>(ref System.Runtime.CompilerServices.ICriticalNotifyCompletion, ref C.<M>d__1)""
    IL_0135:  ldnull
    IL_0136:  stloc.3
    IL_0137:  leave      IL_0356
    IL_013c:  ldarg.0
    IL_013d:  ldfld      ""object C.<M>d__1.<>u__1""
    IL_0142:  stloc.2
    IL_0143:  ldarg.0
    IL_0144:  ldnull
    IL_0145:  stfld      ""object C.<M>d__1.<>u__1""
    IL_014a:  ldarg.0
    IL_014b:  ldc.i4.m1
    IL_014c:  dup
    IL_014d:  stloc.0
    IL_014e:  stfld      ""int C.<M>d__1.<>1__state""
    IL_0153:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__3""
    IL_0158:  brtrue.s   IL_018a
    IL_015a:  ldc.i4.0
    IL_015b:  ldstr      ""GetResult""
    IL_0160:  ldnull
    IL_0161:  ldtoken    ""C""
    IL_0166:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_016b:  ldc.i4.1
    IL_016c:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_0171:  dup
    IL_0172:  ldc.i4.0
    IL_0173:  ldc.i4.0
    IL_0174:  ldnull
    IL_0175:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_017a:  stelem.ref
    IL_017b:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_0180:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0185:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__3""
    IL_018a:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__3""
    IL_018f:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_0194:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__3""
    IL_0199:  ldloc.2
    IL_019a:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_019f:  stloc.1
    IL_01a0:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__4""
    IL_01a5:  brtrue.s   IL_01d7
    IL_01a7:  ldc.i4.0
    IL_01a8:  ldstr      ""GetAwaiter""
    IL_01ad:  ldnull
    IL_01ae:  ldtoken    ""C""
    IL_01b3:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_01b8:  ldc.i4.1
    IL_01b9:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_01be:  dup
    IL_01bf:  ldc.i4.0
    IL_01c0:  ldc.i4.0
    IL_01c1:  ldnull
    IL_01c2:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_01c7:  stelem.ref
    IL_01c8:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_01cd:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_01d2:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__4""
    IL_01d7:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__4""
    IL_01dc:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_01e1:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__4""
    IL_01e6:  ldloc.1
    IL_01e7:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_01ec:  stloc.2
    IL_01ed:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__6""
    IL_01f2:  brtrue.s   IL_0219
    IL_01f4:  ldc.i4.s   16
    IL_01f6:  ldtoken    ""bool""
    IL_01fb:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_0200:  ldtoken    ""C""
    IL_0205:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_020a:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.Convert(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, System.Type, System.Type)""
    IL_020f:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0214:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__6""
    IL_0219:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__6""
    IL_021e:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, bool> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>>.Target""
    IL_0223:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, bool>> C.<M>d__1.<>o__1.<>p__6""
    IL_0228:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__5""
    IL_022d:  brtrue.s   IL_025e
    IL_022f:  ldc.i4.0
    IL_0230:  ldstr      ""IsCompleted""
    IL_0235:  ldtoken    ""C""
    IL_023a:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_023f:  ldc.i4.1
    IL_0240:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_0245:  dup
    IL_0246:  ldc.i4.0
    IL_0247:  ldc.i4.0
    IL_0248:  ldnull
    IL_0249:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_024e:  stelem.ref
    IL_024f:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.GetMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_0254:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_0259:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__5""
    IL_025e:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__5""
    IL_0263:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_0268:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__5""
    IL_026d:  ldloc.2
    IL_026e:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_0273:  callvirt   ""bool System.Func<System.Runtime.CompilerServices.CallSite, object, bool>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_0278:  brtrue.s   IL_02db
    IL_027a:  ldarg.0
    IL_027b:  ldc.i4.1
    IL_027c:  dup
    IL_027d:  stloc.0
    IL_027e:  stfld      ""int C.<M>d__1.<>1__state""
    IL_0283:  ldarg.0
    IL_0284:  ldloc.2
    IL_0285:  stfld      ""object C.<M>d__1.<>u__1""
    IL_028a:  ldloc.2
    IL_028b:  isinst     ""System.Runtime.CompilerServices.ICriticalNotifyCompletion""
    IL_0290:  stloc.3
    IL_0291:  ldloc.3
    IL_0292:  brtrue.s   IL_02af
    IL_0294:  ldloc.2
    IL_0295:  castclass  ""System.Runtime.CompilerServices.INotifyCompletion""
    IL_029a:  stloc.s    V_4
    IL_029c:  ldarg.0
    IL_029d:  ldflda     ""System.Runtime.CompilerServices.AsyncVoidMethodBuilder C.<M>d__1.<>t__builder""
    IL_02a2:  ldloca.s   V_4
    IL_02a4:  ldarg.0
    IL_02a5:  call       ""void System.Runtime.CompilerServices.AsyncVoidMethodBuilder.AwaitOnCompleted<System.Runtime.CompilerServices.INotifyCompletion, C.<M>d__1>(ref System.Runtime.CompilerServices.INotifyCompletion, ref C.<M>d__1)""
    IL_02aa:  ldnull
    IL_02ab:  stloc.s    V_4
    IL_02ad:  br.s       IL_02bd
    IL_02af:  ldarg.0
    IL_02b0:  ldflda     ""System.Runtime.CompilerServices.AsyncVoidMethodBuilder C.<M>d__1.<>t__builder""
    IL_02b5:  ldloca.s   V_3
    IL_02b7:  ldarg.0
    IL_02b8:  call       ""void System.Runtime.CompilerServices.AsyncVoidMethodBuilder.AwaitUnsafeOnCompleted<System.Runtime.CompilerServices.ICriticalNotifyCompletion, C.<M>d__1>(ref System.Runtime.CompilerServices.ICriticalNotifyCompletion, ref C.<M>d__1)""
    IL_02bd:  ldnull
    IL_02be:  stloc.3
    IL_02bf:  leave      IL_0356
    IL_02c4:  ldarg.0
    IL_02c5:  ldfld      ""object C.<M>d__1.<>u__1""
    IL_02ca:  stloc.2
    IL_02cb:  ldarg.0
    IL_02cc:  ldnull
    IL_02cd:  stfld      ""object C.<M>d__1.<>u__1""
    IL_02d2:  ldarg.0
    IL_02d3:  ldc.i4.m1
    IL_02d4:  dup
    IL_02d5:  stloc.0
    IL_02d6:  stfld      ""int C.<M>d__1.<>1__state""
    IL_02db:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__7""
    IL_02e0:  brtrue.s   IL_0312
    IL_02e2:  ldc.i4.0
    IL_02e3:  ldstr      ""GetResult""
    IL_02e8:  ldnull
    IL_02e9:  ldtoken    ""C""
    IL_02ee:  call       ""System.Type System.Type.GetTypeFromHandle(System.RuntimeTypeHandle)""
    IL_02f3:  ldc.i4.1
    IL_02f4:  newarr     ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo""
    IL_02f9:  dup
    IL_02fa:  ldc.i4.0
    IL_02fb:  ldc.i4.0
    IL_02fc:  ldnull
    IL_02fd:  call       ""Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create(Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfoFlags, string)""
    IL_0302:  stelem.ref
    IL_0303:  call       ""System.Runtime.CompilerServices.CallSiteBinder Microsoft.CSharp.RuntimeBinder.Binder.InvokeMember(Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, string, System.Collections.Generic.IEnumerable<System.Type>, System.Type, System.Collections.Generic.IEnumerable<Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo>)""
    IL_0308:  call       ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Create(System.Runtime.CompilerServices.CallSiteBinder)""
    IL_030d:  stsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__7""
    IL_0312:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__7""
    IL_0317:  ldfld      ""System.Func<System.Runtime.CompilerServices.CallSite, object, object> System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>>.Target""
    IL_031c:  ldsfld     ""System.Runtime.CompilerServices.CallSite<System.Func<System.Runtime.CompilerServices.CallSite, object, object>> C.<M>d__1.<>o__1.<>p__7""
    IL_0321:  ldloc.2
    IL_0322:  callvirt   ""object System.Func<System.Runtime.CompilerServices.CallSite, object, object>.Invoke(System.Runtime.CompilerServices.CallSite, object)""
    IL_0327:  pop
    IL_0328:  leave.s    IL_0343
  }
  catch System.Exception
  {
    IL_032a:  stloc.s    V_5
    IL_032c:  ldarg.0
    IL_032d:  ldc.i4.s   -2
    IL_032f:  stfld      ""int C.<M>d__1.<>1__state""
    IL_0334:  ldarg.0
    IL_0335:  ldflda     ""System.Runtime.CompilerServices.AsyncVoidMethodBuilder C.<M>d__1.<>t__builder""
    IL_033a:  ldloc.s    V_5
    IL_033c:  call       ""void System.Runtime.CompilerServices.AsyncVoidMethodBuilder.SetException(System.Exception)""
    IL_0341:  leave.s    IL_0356
  }
  IL_0343:  ldarg.0
  IL_0344:  ldc.i4.s   -2
  IL_0346:  stfld      ""int C.<M>d__1.<>1__state""
  IL_034b:  ldarg.0
  IL_034c:  ldflda     ""System.Runtime.CompilerServices.AsyncVoidMethodBuilder C.<M>d__1.<>t__builder""
  IL_0351:  call       ""void System.Runtime.CompilerServices.AsyncVoidMethodBuilder.SetResult()""
  IL_0356:  ret
}
");
        }

        [Fact]
        public void MissingCSharpArgumentInfoCreate()
        {
            string source =
@"class C
{
    static void F(dynamic d)
    {
        d.F();
    }
}";
            var comp = CreateCompilationWithMscorlib461(
                new[] { DynamicAttributeSource, source },
                references: new[] { SystemRef_v4_0_30319_17929, SystemCoreRef_v4_0_30319_17929 });
            comp.VerifyEmitDiagnostics(
                // (5,9): error CS0656: Missing compiler required member 'Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create'
                //         d.F();
                Diagnostic(ErrorCode.ERR_MissingPredefinedMember, "d").WithArguments("Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo", "Create").WithLocation(5, 9));
        }

        [Fact]
        [WorkItem(377883, "https://devdiv.visualstudio.com/DevDiv/_workitems?id=377883")]
        public void MissingCSharpArgumentInfoCreate_Async()
        {
            string source =
@"using System.Threading.Tasks;
class C
{
    static async Task F(dynamic d)
    {
        await d;
    }
}";
            var comp = CreateCompilationWithMscorlib461(
                new[] { DynamicAttributeSource, source },
                references: new[] { SystemRef_v4_0_30319_17929, SystemCoreRef_v4_0_30319_17929 });
            comp.VerifyEmitDiagnostics(
                // (6,15): error CS0656: Missing compiler required member 'Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create'
                //         await d;
                Diagnostic(ErrorCode.ERR_MissingPredefinedMember, "d").WithArguments("Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo", "Create").WithLocation(6, 15));
        }

        #endregion

        #region Regression Tests

        [ConditionalFact(typeof(DesktopOnly))]
        public void ByRefDynamic()
        {
            string source = @"
    public class Program
    {
        static void Main(string[] args)
        {
            System.Console.Write(Test1());
            System.Console.Write("" "");
            System.Console.Write(x.Length);
        }

        static dynamic x = new C1();

        static int Test1()
        {
            return M1(ref x.Length);
        }

        static dynamic M1(ref dynamic d)
        {
            d = 321;
            return d;
        }
    }

    class C1
    {
        public int Length = 123;
    }
";
            var comp = CompileAndVerify(source, parseOptions: TestOptions.Regular.WithNoRefSafetyRulesAttribute(), expectedOutput: "321 123", references: new[] { CSharpRef });
        }

        [Fact]
        [WorkItem(41947, "https://github.com/dotnet/roslyn/issues/41947")]
        public void DynamicInGenericLocalFunction1()
        {
            var source = @"
using System;
class Program
{
    public static void Main()
    {
        M("""");
        void M<T>(T slot)
        {
            slot = (dynamic)default;
            Console.WriteLine(slot is null);
        }
    }
}";
            VerifyTypeIL(
                CompileAndVerify(source, parseOptions: TestOptions.Regular.WithNoRefSafetyRulesAttribute(), expectedOutput: "True", references: new[] { CSharpRef }),
                "Program",
                @"
.class private auto ansi beforefieldinit Program
	extends [netstandard]System.Object
{
	// Nested Types
	.class nested private auto ansi abstract sealed beforefieldinit '<>o__0|0`1'<T>
		extends [netstandard]System.Object
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public static class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !T>> '<>p__0'
	} // end of class <>o__0|0`1
	// Methods
	.method public hidebysig static 
		void Main () cil managed 
	{
		// Method begins at RVA 0x2050
		// Code size 11 (0xb)
		.maxstack 8
		.entrypoint
		IL_0000: ldstr """"
		IL_0005: call void Program::'<Main>g__M|0_0'<string>(!!0)
		IL_000a: ret
	} // end of method Program::Main
	.method public hidebysig specialname rtspecialname 
		instance void .ctor () cil managed 
	{
		// Method begins at RVA 0x205c
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call instance void [netstandard]System.Object::.ctor()
		IL_0006: ret
	} // end of method Program::.ctor
	.method assembly hidebysig static 
		void '<Main>g__M|0_0'<T> (
			!!T slot
		) cil managed 
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Method begins at RVA 0x2064
		// Code size 81 (0x51)
		.maxstack 3
		IL_0000: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__0|0`1'<!!T>::'<>p__0'
		IL_0005: brtrue.s IL_002b
		IL_0007: ldc.i4.0
		IL_0008: ldtoken !!T
		IL_000d: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_0012: ldtoken Program
		IL_0017: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_001c: call class [netstandard]System.Runtime.CompilerServices.CallSiteBinder [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.Binder::Convert(valuetype [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, class [netstandard]System.Type, class [netstandard]System.Type)
		IL_0021: call class [netstandard]System.Runtime.CompilerServices.CallSite`1<!0> class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T>>::Create(class [netstandard]System.Runtime.CompilerServices.CallSiteBinder)
		IL_0026: stsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__0|0`1'<!!T>::'<>p__0'
		IL_002b: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__0|0`1'<!!T>::'<>p__0'
		IL_0030: ldfld !0 class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T>>::Target
		IL_0035: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__0|0`1'<!!T>::'<>p__0'
		IL_003a: ldnull
		IL_003b: callvirt instance !2 class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T>::Invoke(!0, !1)
		IL_0040: starg.s slot
		IL_0042: ldarg.0
		IL_0043: box !!T
		IL_0048: ldnull
		IL_0049: ceq
		IL_004b: call void [netstandard]System.Console::WriteLine(bool)
		IL_0050: ret
	} // end of method Program::'<Main>g__M|0_0'
} // end of class Program");
        }

        [Fact]
        [WorkItem(41947, "https://github.com/dotnet/roslyn/issues/41947")]
        public void DynamicInGenericLocalFunction2()
        {
            var source = @"
using System;
class Program
{
    public static void Main()
    {
        M1<string, string>("""");
    }

    public static void M1<T1, T2>(T1 a)
    {
        M2<T1, T2>(a);
        void M2<T3, T4>(T3 b)
        {
            M3<T3, T4>(b);
            void M3<T5, T6>(T5 c)
            {
                c = (dynamic)default;
                Console.WriteLine(c is null);
            }
        }
    }
}";
            VerifyTypeIL(
                CompileAndVerify(source, parseOptions: TestOptions.Regular.WithNoRefSafetyRulesAttribute(), expectedOutput: "True", references: new[] { CSharpRef }),
                "Program",
                @"
.class private auto ansi beforefieldinit Program
	extends [netstandard]System.Object
{
	// Nested Types
	.class nested private auto ansi abstract sealed beforefieldinit '<>o__1|1`6'<T1, T2, T3, T4, T5, T6>
		extends [netstandard]System.Object
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public static class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !T5>> '<>p__0'
	} // end of class <>o__1|1`6
	// Methods
	.method public hidebysig static 
		void Main () cil managed 
	{
		// Method begins at RVA 0x2050
		// Code size 11 (0xb)
		.maxstack 8
		.entrypoint
		IL_0000: ldstr """"
		IL_0005: call void Program::M1<string, string>(!!0)
		IL_000a: ret
	} // end of method Program::Main
	.method public hidebysig static 
		void M1<T1, T2> (
			!!T1 a
		) cil managed 
	{
		// Method begins at RVA 0x205c
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call void Program::'<M1>g__M2|1_0'<!!T1, !!T2, !!T1, !!T2>(!!2)
		IL_0006: ret
	} // end of method Program::M1
	.method public hidebysig specialname rtspecialname 
		instance void .ctor () cil managed 
	{
		// Method begins at RVA 0x2064
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call instance void [netstandard]System.Object::.ctor()
		IL_0006: ret
	} // end of method Program::.ctor
	.method assembly hidebysig static 
		void '<M1>g__M2|1_0'<T1, T2, T3, T4> (
			!!T3 b
		) cil managed 
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Method begins at RVA 0x206c
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call void Program::'<M1>g__M3|1_1'<!!T1, !!T2, !!T3, !!T4, !!T3, !!T4>(!!4)
		IL_0006: ret
	} // end of method Program::'<M1>g__M2|1_0'
	.method assembly hidebysig static 
		void '<M1>g__M3|1_1'<T1, T2, T3, T4, T5, T6> (
			!!T5 c
		) cil managed 
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Method begins at RVA 0x2074
		// Code size 81 (0x51)
		.maxstack 3
		IL_0000: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !4>> class Program/'<>o__1|1`6'<!!T1, !!T2, !!T3, !!T4, !!T5, !!T6>::'<>p__0'
		IL_0005: brtrue.s IL_002b
		IL_0007: ldc.i4.0
		IL_0008: ldtoken !!T5
		IL_000d: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_0012: ldtoken Program
		IL_0017: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_001c: call class [netstandard]System.Runtime.CompilerServices.CallSiteBinder [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.Binder::Convert(valuetype [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, class [netstandard]System.Type, class [netstandard]System.Type)
		IL_0021: call class [netstandard]System.Runtime.CompilerServices.CallSite`1<!0> class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T5>>::Create(class [netstandard]System.Runtime.CompilerServices.CallSiteBinder)
		IL_0026: stsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !4>> class Program/'<>o__1|1`6'<!!T1, !!T2, !!T3, !!T4, !!T5, !!T6>::'<>p__0'
		IL_002b: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !4>> class Program/'<>o__1|1`6'<!!T1, !!T2, !!T3, !!T4, !!T5, !!T6>::'<>p__0'
		IL_0030: ldfld !0 class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T5>>::Target
		IL_0035: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !4>> class Program/'<>o__1|1`6'<!!T1, !!T2, !!T3, !!T4, !!T5, !!T6>::'<>p__0'
		IL_003a: ldnull
		IL_003b: callvirt instance !2 class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T5>::Invoke(!0, !1)
		IL_0040: starg.s c
		IL_0042: ldarg.0
		IL_0043: box !!T5
		IL_0048: ldnull
		IL_0049: ceq
		IL_004b: call void [netstandard]System.Console::WriteLine(bool)
		IL_0050: ret
	} // end of method Program::'<M1>g__M3|1_1'
} // end of class Program");
        }

        [Fact]
        [WorkItem(41947, "https://github.com/dotnet/roslyn/issues/41947")]
        public void DynamicInGenericLocalFunction3()
        {
            var source = @"
using System;
class Program
{
    public static void Main()
    {
        M1("""");
    }

    public static void M1<T1>(T1 a)
    {
        M2(a);
        void M2(T1 b)
        {
            b = (dynamic)default;
            Console.WriteLine(b is null);
        }
    }
}";
            VerifyTypeIL(
                CompileAndVerify(source, parseOptions: TestOptions.Regular.WithNoRefSafetyRulesAttribute(), expectedOutput: "True", references: new[] { CSharpRef }),
                "Program",
                @"
.class private auto ansi beforefieldinit Program
	extends [netstandard]System.Object
{
	// Nested Types
	.class nested private auto ansi abstract sealed beforefieldinit '<>o__1`1'<T1>
		extends [netstandard]System.Object
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public static class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !T1>> '<>p__0'
	} // end of class <>o__1`1
	// Methods
	.method public hidebysig static 
		void Main () cil managed 
	{
		// Method begins at RVA 0x2050
		// Code size 11 (0xb)
		.maxstack 8
		.entrypoint
		IL_0000: ldstr """"
		IL_0005: call void Program::M1<string>(!!0)
		IL_000a: ret
	} // end of method Program::Main
	.method public hidebysig static 
		void M1<T1> (
			!!T1 a
		) cil managed 
	{
		// Method begins at RVA 0x205c
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call void Program::'<M1>g__M2|1_0'<!!T1>(!!0)
		IL_0006: ret
	} // end of method Program::M1
	.method public hidebysig specialname rtspecialname 
		instance void .ctor () cil managed 
	{
		// Method begins at RVA 0x2064
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call instance void [netstandard]System.Object::.ctor()
		IL_0006: ret
	} // end of method Program::.ctor
	.method assembly hidebysig static 
		void '<M1>g__M2|1_0'<T1> (
			!!T1 b
		) cil managed 
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Method begins at RVA 0x206c
		// Code size 81 (0x51)
		.maxstack 3
		IL_0000: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__1`1'<!!T1>::'<>p__0'
		IL_0005: brtrue.s IL_002b
		IL_0007: ldc.i4.0
		IL_0008: ldtoken !!T1
		IL_000d: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_0012: ldtoken Program
		IL_0017: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_001c: call class [netstandard]System.Runtime.CompilerServices.CallSiteBinder [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.Binder::Convert(valuetype [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, class [netstandard]System.Type, class [netstandard]System.Type)
		IL_0021: call class [netstandard]System.Runtime.CompilerServices.CallSite`1<!0> class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T1>>::Create(class [netstandard]System.Runtime.CompilerServices.CallSiteBinder)
		IL_0026: stsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__1`1'<!!T1>::'<>p__0'
		IL_002b: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__1`1'<!!T1>::'<>p__0'
		IL_0030: ldfld !0 class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T1>>::Target
		IL_0035: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !0>> class Program/'<>o__1`1'<!!T1>::'<>p__0'
		IL_003a: ldnull
		IL_003b: callvirt instance !2 class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T1>::Invoke(!0, !1)
		IL_0040: starg.s b
		IL_0042: ldarg.0
		IL_0043: box !!T1
		IL_0048: ldnull
		IL_0049: ceq
		IL_004b: call void [netstandard]System.Console::WriteLine(bool)
		IL_0050: ret
	} // end of method Program::'<M1>g__M2|1_0'
} // end of class Program");
        }

        [Fact]
        [WorkItem(41947, "https://github.com/dotnet/roslyn/issues/41947")]
        public void DynamicInGenericLocalFunction4()
        {
            var source = @"
using System;
class Program
{
    public static void Main()
    {
        M1("""");
        
        void M1<T>(T a)
        {
            M2(a);
            void M2<T>(T b)
            {
                b = (dynamic)default;
                Console.WriteLine(b is null);
            }
        }
    }
}";
            VerifyTypeIL(
                CompileAndVerify(source, parseOptions: TestOptions.Regular.WithNoRefSafetyRulesAttribute(), expectedOutput: "True", references: new[] { CSharpRef }),
                "Program",
                @"
.class private auto ansi beforefieldinit Program
	extends [netstandard]System.Object
{
	// Nested Types
	.class nested private auto ansi abstract sealed beforefieldinit '<>o__1|0`2'<T, T>
		extends [netstandard]System.Object
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public static class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !T>> '<>p__0'
	} // end of class <>o__1|0`2
	// Methods
	.method public hidebysig static 
		void Main () cil managed 
	{
		// Method begins at RVA 0x2050
		// Code size 11 (0xb)
		.maxstack 8
		.entrypoint
		IL_0000: ldstr """"
		IL_0005: call void Program::'<Main>g__M1|0_0'<string>(!!0)
		IL_000a: ret
	} // end of method Program::Main
	.method public hidebysig specialname rtspecialname 
		instance void .ctor () cil managed 
	{
		// Method begins at RVA 0x205c
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call instance void [netstandard]System.Object::.ctor()
		IL_0006: ret
	} // end of method Program::.ctor
	.method assembly hidebysig static 
		void '<Main>g__M1|0_0'<T> (
			!!T a
		) cil managed 
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Method begins at RVA 0x2064
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call void Program::'<Main>g__M2|0_1'<!!T, !!T>(!!1)
		IL_0006: ret
	} // end of method Program::'<Main>g__M1|0_0'
	.method assembly hidebysig static 
		void '<Main>g__M2|0_1'<T, T> (
			!!T b
		) cil managed 
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Method begins at RVA 0x206c
		// Code size 81 (0x51)
		.maxstack 3
		IL_0000: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Program/'<>o__1|0`2'<!!T, !!T>::'<>p__0'
		IL_0005: brtrue.s IL_002b
		IL_0007: ldc.i4.0
		IL_0008: ldtoken !!T
		IL_000d: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_0012: ldtoken Program
		IL_0017: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_001c: call class [netstandard]System.Runtime.CompilerServices.CallSiteBinder [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.Binder::Convert(valuetype [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, class [netstandard]System.Type, class [netstandard]System.Type)
		IL_0021: call class [netstandard]System.Runtime.CompilerServices.CallSite`1<!0> class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T>>::Create(class [netstandard]System.Runtime.CompilerServices.CallSiteBinder)
		IL_0026: stsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Program/'<>o__1|0`2'<!!T, !!T>::'<>p__0'
		IL_002b: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Program/'<>o__1|0`2'<!!T, !!T>::'<>p__0'
		IL_0030: ldfld !0 class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T>>::Target
		IL_0035: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Program/'<>o__1|0`2'<!!T, !!T>::'<>p__0'
		IL_003a: ldnull
		IL_003b: callvirt instance !2 class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T>::Invoke(!0, !1)
		IL_0040: starg.s b
		IL_0042: ldarg.0
		IL_0043: box !!T
		IL_0048: ldnull
		IL_0049: ceq
		IL_004b: call void [netstandard]System.Console::WriteLine(bool)
		IL_0050: ret
	} // end of method Program::'<Main>g__M2|0_1'
} // end of class Program");
        }

        [Fact]
        [WorkItem(41947, "https://github.com/dotnet/roslyn/issues/41947")]
        public void DynamicInGenericLocalFunction5()
        {
            var source = @"
using System;
class Program
{
    public static void Main()
    {
        Class<int>.M();
    }
}

class Class<T1>
{
    public static void M()
    {
        M1("""");
        void M1<T2>(T2 a)
        {
            a = (dynamic)default;
            Console.WriteLine(a is null);
        }
    }
}";
            VerifyTypeIL(
                CompileAndVerify(source, parseOptions: TestOptions.Regular.WithNoRefSafetyRulesAttribute(), expectedOutput: "True", references: new[] { CSharpRef }),
                "Class`1",
                @"
.class private auto ansi beforefieldinit Class`1<T1>
	extends [netstandard]System.Object
{
	// Nested Types
	.class nested private auto ansi abstract sealed beforefieldinit '<>o__0|0`1'<T1, T2>
		extends [netstandard]System.Object
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Fields
		.field public static class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !T2>> '<>p__0'
	} // end of class <>o__0|0`1
	// Methods
	.method public hidebysig static 
		void M () cil managed 
	{
		// Method begins at RVA 0x205f
		// Code size 11 (0xb)
		.maxstack 8
		IL_0000: ldstr """"
		IL_0005: call void class Class`1<!T1>::'<M>g__M1|0_0'<string>(!!0)
		IL_000a: ret
	} // end of method Class`1::M
	.method public hidebysig specialname rtspecialname 
		instance void .ctor () cil managed 
	{
		// Method begins at RVA 0x2057
		// Code size 7 (0x7)
		.maxstack 8
		IL_0000: ldarg.0
		IL_0001: call instance void [netstandard]System.Object::.ctor()
		IL_0006: ret
	} // end of method Class`1::.ctor
	.method assembly hidebysig static 
		void '<M>g__M1|0_0'<T2> (
			!!T2 a
		) cil managed 
	{
		.custom instance void [netstandard]System.Runtime.CompilerServices.CompilerGeneratedAttribute::.ctor() = (
			01 00 00 00
		)
		// Method begins at RVA 0x206c
		// Code size 81 (0x51)
		.maxstack 3
		IL_0000: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Class`1/'<>o__0|0`1'<!T1, !!T2>::'<>p__0'
		IL_0005: brtrue.s IL_002b
		IL_0007: ldc.i4.0
		IL_0008: ldtoken !!T2
		IL_000d: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_0012: ldtoken class Class`1<!T1>
		IL_0017: call class [netstandard]System.Type [netstandard]System.Type::GetTypeFromHandle(valuetype [netstandard]System.RuntimeTypeHandle)
		IL_001c: call class [netstandard]System.Runtime.CompilerServices.CallSiteBinder [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.Binder::Convert(valuetype [Microsoft.CSharp]Microsoft.CSharp.RuntimeBinder.CSharpBinderFlags, class [netstandard]System.Type, class [netstandard]System.Type)
		IL_0021: call class [netstandard]System.Runtime.CompilerServices.CallSite`1<!0> class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T2>>::Create(class [netstandard]System.Runtime.CompilerServices.CallSiteBinder)
		IL_0026: stsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Class`1/'<>o__0|0`1'<!T1, !!T2>::'<>p__0'
		IL_002b: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Class`1/'<>o__0|0`1'<!T1, !!T2>::'<>p__0'
		IL_0030: ldfld !0 class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T2>>::Target
		IL_0035: ldsfld class [netstandard]System.Runtime.CompilerServices.CallSite`1<class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !1>> class Class`1/'<>o__0|0`1'<!T1, !!T2>::'<>p__0'
		IL_003a: ldnull
		IL_003b: callvirt instance !2 class [netstandard]System.Func`3<class [netstandard]System.Runtime.CompilerServices.CallSite, object, !!T2>::Invoke(!0, !1)
		IL_0040: starg.s a
		IL_0042: ldarg.0
		IL_0043: box !!T2
		IL_0048: ldnull
		IL_0049: ceq
		IL_004b: call void [netstandard]System.Console::WriteLine(bool)
		IL_0050: ret
	} // end of method Class`1::'<M>g__M1|0_0'
} // end of class Class`1");
        }

        private static void VerifyTypeIL(CompilationVerifier compilation, string typeName, string expected)
        {
            // .Net Core has different assemblies for the same standard library types as .Net Framework, meaning that that the emitted output will be different to the expected if we run them .Net Framework
            // Since we do not expect there to be any meaningful differences between output for .Net Core and .Net Framework, we will skip these tests on .Net Framework
            if (ExecutionConditionUtil.IsCoreClr)
            {
                compilation.VerifyTypeIL(typeName, expected);
            }
        }
        #endregion
    }
}