Use the new test runner.

test/global/activate/installs_dependencies_for_path_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_test.dart';
 import 'package:scheduled_test/scheduled_stream.dart';
 
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
-  initConfig();
   integration('activating a path package installs dependencies', () {
     servePackages((builder) {
       builder.serve("bar", "1.0.0", deps: {"baz": "any"});
       builder.serve("baz", "2.0.0");
     });
 
     d.dir("foo", [
       d.libPubspec("foo", "0.0.0", deps: {
         "bar": "any"
       }),
@@ skipping 12 matching lines @@
 
     // Puts the lockfile in the linked package itself.
     d.dir("foo", [
       d.matcherFile("pubspec.lock", allOf([
         contains("bar"), contains("1.0.0"),
         contains("baz"), contains("2.0.0")
       ]))
     ]).validate();
   });
 }