Add in missing [] methods to some tests.

Author: msullivan

src/test/run-pass/class-impl-parameterized-iface.rs

@@ -42,6 +42,7 @@ class cat : map<int, bool> {
   }
   fn contains_key(&&k: int) -> bool { k <= self.meows }
   fn get(&&k:int) -> bool { k <= self.meows }
+  fn [](&&k:int) -> bool { k <= self.meows }
   fn find(&&k:int) -> option<bool> { some(self.get(k)) }
   fn remove(&&k:int) -> option<bool> { self.meows -= k; some(true) }
   fn each(f: fn(&&int, &&bool) -> bool) {

src/test/run-pass/class-impl-very-parameterized-iface.rs

@@ -52,6 +52,7 @@ class cat<T: copy> : map<int, T> {
       none    { fail "epic fail"; }
     }
   }
+  fn [](&&k:int) -> T { get(k) }
   fn find(&&k:int) -> option<T> { if k <= self.meows {
         some(self.name)
      }