mozilla/rust — pull request #13154 by tomassedovic (2014-03-26 14:46:17+00:00)
Title: Derive TotalEq for std::intrinsics::TypeId

HashMap and HashSet require keys to implement TotalEq. This makes it possible to use TypeId as a HashMap key again.

Question for reviewers: assuming we want to support `HashMap`, would it make sense to add a relevant test? If so, should it go to libcollections or libstd?