develop
Add "Call" command to execute functions
Add ability to set value to object expression
Improve AST clone support
Initial implementation of IF command
Make most of AST classes internal
Add "except" keyword for "select" command
Add more strings to resources
Allow to evaluate filter on object expressions lists
Fix IdentifierIndexSelectorNode dump text
Initial implementation of object selector
Change the way of identifiers and string literals handle
Add experimental AST cache, fix AST nodes clone issues
Improve QueryAstVisitor, implement Declare visit
Do not return next statement node