auto merge of #12520 : thestinger/rust/cmp, r=brson

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

This is a partial implementation of #12517.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libstd/vec.rs b/src/libstd/vec.rs
index 59136c99ec9..69bf5f5d0fc 100644
--- a/src/libstd/vec.rs
+++ b/src/libstd/vec.rs
@@ -682,7 +682,7 @@ pub mod traits {
         fn cmp(&self, other: &~[T]) -> Ordering { self.as_slice().cmp(&other.as_slice()) }
     }
 
-    impl<'a, T: Eq + Ord> Ord for &'a [T] {
+    impl<'a, T: Ord> Ord for &'a [T] {
         fn lt(&self, other: & &'a [T]) -> bool {
             order::lt(self.iter(), other.iter())
         }
@@ -700,7 +700,7 @@ pub mod traits {
         }
     }
 
-    impl<T: Eq + Ord> Ord for ~[T] {
+    impl<T: Ord> Ord for ~[T] {
         #[inline]
         fn lt(&self, other: &~[T]) -> bool { self.as_slice() < other.as_slice() }
         #[inline]