reenable some dartc tests that have been disabled accidentally. Move

client/tests/dartc/test_config.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("client_dartc_test_config");
-
-#import("../../../tools/testing/dart/test_suite.dart");
-
-class ClientDartcTestSuite extends DartcCompilationTestSuite {
-  ClientDartcTestSuite(Map configuration)
-      : super(configuration,
-              "dartc",
-              "client",
-              ['async',
-               'base',
-               'box2d',
-               'dom',
-               'json',
-               'observable',
-               'samples',
-               'streams',
-               'testing',
-               'tests',
-               'touch',
-               'util',
-               'view',
-               'weld'],
-              ["client/tests/dartc/dartc.status"]);
-
-  bool isTestFile(String filename) {
-    if (!filename.endsWith(".dart")) return false;
-    // Using readOptionsFromFile here causes the file to be read twice,
-    // because readOptionsFromFile is called again in the superclass.
-    // Avoid this in new code.
-    return readOptionsFromFile(filename)["containsLeadingHash"];
-  }
-
-  bool listRecursively() => true;
-}