Operator overload

[HerrCai0907]

new A() == new B() and new B() == new A() will call different operator overload functions if both A and B have overload function declarations.

It needs more clear rules to handle it.
In my opinion there are two solutions:

1. Diagnose when confused overload resolution.
2. Define priorities and do overload resolution according to priorities.

[CountBleck]

Number one seems more plausible, since a cast would fix it.