Use the new test runner.

test/global/binstubs/name_collision_with_overwrite_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:scheduled_test/scheduled_stream.dart';
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
-  initConfig();
   integration("overwrites an existing binstub if --overwrite is passed", () {
     d.dir("foo", [
       d.pubspec({
         "name": "foo",
         "executables": {
           "foo": "foo",
           "collide1": "foo",
           "collide2": "foo"
         }
       }),
@@ skipping 30 matching lines @@
     d.dir(cachePath, [
       d.dir("bin", [
         d.matcherFile(binStubName("foo"), contains("foo:foo")),
         d.matcherFile(binStubName("bar"), contains("bar:bar")),
         d.matcherFile(binStubName("collide1"), contains("bar:bar")),
         d.matcherFile(binStubName("collide2"), contains("bar:bar"))
       ])
     ]).validate();
   });
 }