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

Reviewed-by: jjh
Contributed-by: steve.sides@oracle.com

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

Summary: Add overload/inference debug diagnostics - added test harness using annotations to check outcome of overload resolution/inference
Reviewed-by: jjg

Summary: method applicability check should fail if formal varargs element type is not accessible
Reviewed-by: jjg

Summary: explicit error message when old-style array syntax is mixed with varargs
Reviewed-by: jjg

Summary: several diagnostic improvements
Reviewed-by: jjg

Reviewed-by: mcimadamore

Summary: synthetic name clash check should not apply to miranda methods
Reviewed-by: jjg
Contributed-by: tomas.zezula@sun.com

Reviewed-by: darcy

Summary: Race condition between symbol completion and attribution of import statements causes NPE when creating intersection type
Reviewed-by: jjg

6920317: package-info.java file has to be specified on the javac cmdline, else it will not be avail.
Reviewed-by: darcy