mozilla/rust — pull request #7572 by Dretch (2013-07-03 21:22:24+00:00)
Title: Make the error messages that result from referencing nonexistent traits consistent, and add a test.

This a followup to #7510. @catamorphism requested a test - so I have created one, but in doing so I noticed some inconsistency in the error messages resulting from referencing nonexistent traits, so I changed the messages to be more consistent.