8030741: Inference: implement eager resolution of return types, consistent with JDK-8028800 Reviewed-by: dlsmith, jjg

8029852: Bad code generated (VerifyError) when lambda instantiates enclosing local class and has captured variables 8029725: Lambda reference to containing local class causes javac infinite recursion Reviewed-by: vromero, jlahoda, dlsmith

8036942: javac generates incorrect exception table for multi-catch statements inside a lambda Summary: Union type info lost and also union type is not processed by TreeMaker.Type -- address by using existing tree, thus by-passing such issues. Reviewed-by: vromero, jlahoda

8040097: Implement classfile tests for LocalVariableTable and LocalVariableTypeTable attribute. Reviewed-by: jjg, shurailine, emc