Summary: Add type-checking/lookup routines for method references
Reviewed-by: jjg, dlsmith

Summary: Make error messages generated during Check.checkType more uniform and more scalable
Reviewed-by: jjg, dlsmith

Summary: Remove bound checking rules from recursive subtype visitors in Types.java and replace with centralized bound-checking logic
Reviewed-by: jjg, dlsmith

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

Reviewed-by: darcy

Summary: removed early toString() conversions applied to diagnostic arguments
Reviewed-by: jjg

Summary: The regression test for CR 6611449 contains some inconstistencies
Reviewed-by: jjg

Summary: type-inference should fail since lub is not defined for primitive types
Reviewed-by: jjg