Lambda implementation TODO

[mhorod]

List of issues found during the implementation of lambdas.

[Rafi0221]

• Fix escapeAnalysis to use lambdaAnalysis along/instead of functionAnalysis
• Uncomment the implementation of closureAnalysis
• Implement generateLambdaHandlers
• Adjust analyzedFunction to analyze lambdas
• Adjust ObjectOutlinesCreator to correctly generete the outline for FunctionType

[FilipKon13]

Closure analysis is not really used in the FunctionHandlerImpl, as it does not need to generate a closure

[SebastianSpyrzewski]

• Heap variables need to be allocated somewhere, I was thinking about prologue - it gets map from heap variables to their pointers (as PrimitiveVariables) as argument

• PrologueEpilogueHandler line 28 won't work for LambdaHandler

• can named function become closures? LambdaHandler is defined only for LambdaExpression now

• someone needs to create closure for lambda

• maybe not necessary, but it would be nice to not use AST nodes in handlers anymore, all the info like arguments and return type could be in AnalyzedFunction

[SebastianSpyrzewski]

Tidy up tests for FunctionHandler, LambdaHandler