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Make Microsoft.Build.Tasks.CodeAnalysis AOT and single-file clean (#84335)
Source package fixes (#78534)
Add Enum static extensions (#79546)
Adds EqualityComparer<T>.Create polyfill
Copilot: Fix culture-sensitive StringBuilder.Append and ToString calls across codebase and add banned symbols (#80800)
Convert ValueTaskFactory methods to static extensions (#79541)
Use globs in .projitems for source packages (#79480)
Add Microsoft.CodeAnalysis.Contracts source package (#76997)
Use `params ImmutableArray<T>` on all applicable public APIs. (#83858)
[main] Source code updates from dotnet/dotnet (#79483)
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