Use the new test runner.

test/serve/supports_user_defined_lazy_transformers_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS d.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 pub_tests;
 
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import 'utils.dart';
 
 main() {
-  initConfig();
   withBarbackVersions("any", () {
     integration("supports a user-defined lazy transformer", () {
       d.dir(appPath, [
         d.pubspec({
           "name": "myapp",
           "transformers": ["myapp/src/transformer"]
         }),
         d.dir("lib", [d.dir("src", [
           d.file("transformer.dart", LAZY_TRANSFORMER)
         ])]),
         d.dir("web", [
           d.file("foo.txt", "foo")
         ])
       ]).create();
 
       createLockFile('myapp', pkg: ['barback']);
 
       var server = pubServe();
       // The build should complete without the transformer logging anything.
       server.stdout.expect('Build completed successfully');
 
       requestShouldSucceed("foo.out", "foo.out");
       server.stdout.expect(emitsLines(
           '[Info from LazyRewrite]:\n'
           'Rewriting myapp|web/foo.txt.'));
       endPubServe();
     });
   });
 }