Fix method resolution to warn about things that don't exist on the declared type.

Fix method resolution to warn about things that don't exist on the declared type.

Not sure how/when this got broken, but we were only warning if no name in the whole world matched. The fix for this is in "value.dart"

Also cleaned up a lot of the compiler code to keep it warning free. There are some warnings in leg, but I left those as I'm not sure what should be done.

Committed: https://code.google.com/p/dart/source/detail?r=1383

[Jennifer Messerly, 2011-11-10 05:43:32]

tbr