Use the new test runner.

test/run/does_not_run_on_transformer_error_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 '../descriptor.dart' as d;
 import '../test_pub.dart';
 
 const SCRIPT = """
 main() {
   print("should not get here!");
@@ skipping 12 matching lines @@
 
   void apply(Transform transform) {
     // Don't run on the transformer itself.
     if (transform.primaryInput.id.path.startsWith("lib")) return;
     transform.logger.error('\${transform.primaryInput.id}.');
   }
 }
 """;
 
 main() {
-  initConfig();
   withBarbackVersions("any", () {
     integration('does not run if a transformer has an error', () {
       d.dir(appPath, [
         d.pubspec({
           "name": "myapp",
           "transformers": ["myapp/src/transformer"]
         }),
         d.dir("lib", [
           d.dir("src", [
             d.file("transformer.dart", TRANSFORMER)
           ])
         ]),
         d.dir("bin", [
           d.file("script.dart", SCRIPT)
         ])
       ]).create();
 
       createLockFile('myapp', pkg: ['barback']);
 
       var pub = pubRun(args: ["bin/script"]);
 
       pub.stderr.expect("[Error from Failing]:");
       pub.stderr.expect("myapp|bin/script.dart.");
 
       // Note: no output from the script.
       pub.shouldExit();
     });
   });
 }