test rename overhaul: step 8 - language tests

tests/language/src/LibraryNegativeTest.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.
-// This test should fail to load because the app file references a
-// library spec file that does not exist.
-
-#library("LibraryNegativeTest.dart");
-#import("NonexistingLibrary.lib");
-
-
-main(args) {
-  LibraryNegativeTest.testMain(args);
-}
-
-class LibraryNegativeTest {
-  static testMain() {
-    print("Er, hello world? This should not be printed!");
-  }
-}
-
-main() {
-  LibraryNegativeTest.testMain();
-}