8078660: Misleading recommendation from diamond finder.
Summary: javac should recommend diamond usage if that could lead to a change in program behavior.
Reviewed-by: mcimadamore
Neg20.java:31:28: compiler.err.cant.apply.diamond.1: (compiler.misc.diamond: Neg20.Foo), (compiler.misc.diamond.invalid.arg: E, (compiler.misc.diamond: Neg20.Foo))
1 error