6976747: JCDiagnostic: replace "boolean mandatory" with new "Set<JCDiagnostic.Flag>" Reviewed-by: mcimadamore

6975005: improve JavacProcessingEnvironment.Round abstraction Reviewed-by: darcy

6978574: return statement in try block with multi-catch causes ClassFormatError Summary: Wrong nested loops in Gen.java causes javac to generate bad bytecode Reviewed-by: jjg

6932571: Compiling Generics causing Inconvertible types Summary: Types.rewriteQuantifiers() does not work well with recursive type-variable bounds Reviewed-by: jjg

6977800: Regression: invalid resolution of supertype for local class Summary: resolution of superclass/superinterfaces in extends/implements clause skips local classes Reviewed-by: jjg

6885255: Improve usability of raw warnings Summary: raw warnings should be disabled in (i) instanceof expressions and (ii) when java.lang.Class is not parameterized Reviewed-by: jjg

6886247: regression: javac crashes with an assertion error in Attr.java Summary: capture conversion does not work on nested types Reviewed-by: jjg

6976833: options included twice in Example SimpleCompiler Reviewed-by: darcy

6369605: Unconstrained type variables fails to include bounds Summary: unconstrained type-variables with recursive bounds are not inferred properly Reviewed-by: jjg

6976649: javac does not enforce required annotation elements in arrays Summary: type annotation should take advantage of recursive annotation checking Reviewed-by: jjg