Use the new test runner.

test/global/activate/doesnt_snapshot_path_executables_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 '../../descriptor.dart' as d;
 import '../../test_pub.dart';
 
 main() {
-  initConfig();
   integration("doesn't snapshots the executables for a path package", () {
     d.dir('foo', [
       d.libPubspec("foo", "1.0.0"),
       d.dir("bin", [
         d.file("hello.dart", "void main() => print('hello!');")
       ])
     ]).create();
 
     schedulePub(args: ["global", "activate", "-spath", "../foo"],
         output: isNot(contains('Precompiled foo:hello.')));
 
     d.dir(cachePath, [
       d.dir('global_packages', [
         d.dir('foo', [
           d.matcherFile('pubspec.lock', contains('1.0.0')),
           d.nothing('bin')
         ])
       ])
     ]).validate();
   });
 }