mozilla/rust — pull request #12520 by thestinger (2014-02-24 14:21:39+00:00)
Title: create a sensible comparison trait hierarchy

* `Ord` inherits from `Eq`
* `TotalOrd` inherits from `TotalEq`
* `TotalOrd` inherits from `Ord`
* `TotalEq` inherits from `Eq`