Implement TotalEq and TotalOrd for Timespec

There's a test making sure that Ord works, so the order dependence
shouldn't be an issue

src/libtime/lib.rs

@@ -63,9 +63,7 @@ mod imp {
 }
 
 /// A record specifying a time value in seconds and nanoseconds.
-
-
-#[deriving(Clone, Eq, Encodable, Decodable, Show)]
+#[deriving(Clone, Eq, TotalEq, Ord, TotalOrd, Encodable, Decodable, Show)]
 pub struct Timespec { sec: i64, nsec: i32 }
 /*
  * Timespec assumes that pre-epoch Timespecs have negative sec and positive
@@ -82,13 +80,6 @@ pub fn new(sec: i64, nsec: i32) -> Timespec {
     }
 }
 
-impl Ord for Timespec {
-    fn lt(&self, other: &Timespec) -> bool {
-        self.sec < other.sec ||
-            (self.sec == other.sec && self.nsec < other.nsec)
-    }
-}
-
 /**
  * Returns the current time as a `timespec` containing the seconds and
  * nanoseconds since 1970-01-01T00:00:00Z.