test rename overhaul: step 5 - frog and leg tests

frog/tests/await/src/TypedFunction3Test.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Type added to asynchornous function is correct.
-
-#import("await_test_helper.dart");
-
-Future<int> f() { // correct return type
-  final y = await futureOf(3);
-  return y;
-}
-
-main() {
-  final x = await f();
-  Expect.equals(3, x);
-}