test rename overhaul: step 8 - language tests

tests/language/src/ManyGenericInstanceofTest.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.
-
-#library("ManyGenericInstanceofTest.dart");
-#source("GenericInstanceof.dart");
-
-class ManyGenericInstanceofTest {
-  static testMain() {
-    for (int i = 0; i < 5000; i++) {
-      GenericInstanceof.testMain();
-    }
-  }
-}
-
-main() {
-  ManyGenericInstanceofTest.testMain();
-}