Fix test

src/test/run-pass/ret-break-cont-in-block.rs

@@ -11,7 +11,7 @@ fn iter<T>(v: ~[T], it: fn(T) -> bool) {
     }
 }
 
-fn find_pos<T:Eq>(n: T, h: ~[T]) -> Option<uint> {
+fn find_pos<T:Eq Copy>(n: T, h: ~[T]) -> Option<uint> {
     let mut i = 0u;
     for iter(copy h) |e| {
         if e == n { return Some(i); }