Reviewed-by: jjg, darcy

Summary: javac does not implement overload resolution w.r.t. varargs methods as described in the JLS
Reviewed-by: jjg

Summary: compiler implementation for overload resolution w/ varargs method does not match JLS
Reviewed-by: jjg

Reviewed-by: darcy

Reviewed-by: darcy

Summary: Add new mandatory warning for unsafe vararg method declaration. Warning can be suppressed as usual (@SuppressWarnings("varargs")/-Xlint:-varargs)
Reviewed-by: jjg, darcy

Reviewed-by: darcy

Summary: Reifiable-ness of varargs element type should be checked after JLS3 15.12.2.8
Reviewed-by: jjg

Reviewed-by: ohair

Reviewed-by: darcy

Summary: intersection types should be considered as non-reifiable by javac
Reviewed-by: jjg

Reviewed-by: jjg

Summary: javac's resolution process should go through all steps described in JLS 15.12.2.2
Reviewed-by: jjg