refactoring package
renaming AST with SyntaxTree
enabling PreProcess
refactoring variables: beginIdx,endIdx
adding Parser/TypeChecker methods..
modifying Method to KMethod in MethodCallNode
adding IsError to KSyntax
add project file
adding MergeOperatorMacro
adding Tokenizer Function
enabling UntypedNode parser
add gitignore
Merge remote-tracking branch 'origin'
adding MEthod lookups
adding KMethod.Eval. Cool!!
improving readability
renewal ReportExpectedAfter function
fix codegen
Merge remote-tracking branch 'upstream/master' into LeafJS
fix to pass codegen test.