8023146: Sjavac test failes in langtools nightly Reviewed-by: mcimadamore, jfranck

8022508: javac crashes if the generics arity of a base class is wrong Reviewed-by: mcimadamore, vromero

8015809: More user friendly compile-time errors for uncaught exceptions in lambda expression Summary: Producing individual errors for uncaught undeclared exceptions inside lambda expressions, rather than one error for the whole lambda Reviewed-by: mcimadamore