Summary: several diagnostic improvements
Reviewed-by: jjg

Summary: issue error (rather than warning) when @PolymorphicSignature is found and target < 7
Reviewed-by: jjg

Summary: special syntax to denote indy return type through type parameters should be removed (and cast shall be used instead)
Reviewed-by: jjg, jrose

Reviewed-by: mcimadamore

Summary: Some regression tests rely on unsupported JSR 292 features
Reviewed-by: jjg

Reviewed-by: xdono

Reviewed-by: jjg, darcy

Reviewed-by: mcimadamore, darcy

Reviewed-by: darcy

Reviewed-by: mcimadamore

Summary: changed Xlint option name from -Xlint:arm to -Xlint:try
Reviewed-by: jjg

Summary: More precise rethrow analysis should be extended to effectively-final exception parameters. Multicatch parameters should be made implicitly final.
Reviewed-by: jjg, darcy

Summary: added hidden compiler flag '-XDfindDiamond' to detect 'diamondifiable' sites
Reviewed-by: jjg

Reviewed-by: darcy, mcimadamore

Reviewed-by: darcy

Summary: Resolve.java should keep track of all candidates found during a method resolution sweep to generate more meaningful diagnostics
Reviewed-by: jjg

6979327: method handle invocation should use casts instead of type parameters to specify return type
Summary: infer return type for polymorphic signature calls according to updated JSR 292 draft
Reviewed-by: jjg
Contributed-by: john.r.rose@oracle.com

Reviewed-by: darcy

Reviewed-by: darcy

Summary: unconstrained type-variables with recursive bounds are not inferred properly
Reviewed-by: jjg

Summary: missing symbols are collected in an HashSet which doesn't preserve ordering
Reviewed-by: jjg

Reviewed-by: darcy

Reviewed-by: darcy

Summary: The test calls the wrong version of JavacMessage constructor
Reviewed-by: jjg

Reviewed-by: mcimadamore

Reviewed-by: mcimadamore

Reviewed-by: darcy

Reviewed-by: darcy