Use @Implementation tag on shadow methods that are now part of the real classes
Ignore failing test. Intention of this test is unclear.

Particularly: whether the intent is to really delegate to Object or to the
Android code. In Robolectric 1.0 this meant not raising an Exception;
but in 2.0 this goes to View.toString(), which has a new implementation
thus failing the test.

There appears to be special handling of toString() in RL 2 code but we
don't understand enough to figure out if it's broken.