Use the new test runner.

test/barback/subdirectories_test.dart

 // Copyright (c) 2014, 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.
 
 import 'package:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../descriptor.dart' as d;
 import '../serve/utils.dart';
 import '../test_pub.dart';
 
 main() {
-  initConfig();
-
   setUp(() {
     d.dir(appPath, [
       d.appPubspec(),
       d.dir("web", [
         d.dir("one", [
           d.dir("inner", [d.file("file.txt", "one")])
         ]),
         d.dir("two", [
           d.dir("inner", [d.file("file.txt", "two")])
         ]),
@@ skipping 30 matching lines @@
     pubServe(args: [webOne, webTwoInner]);
 
     requestShouldSucceed("inner/file.txt", "one", root: webOne);
     requestShouldSucceed("file.txt", "two", root: webTwoInner);
     expectNotServed("web");
     expectNotServed(p.join("web", "three"));
 
     endPubServe();
   });
 }