Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_on_path_test.dart

Index: sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_on_path_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_on_path_test.dart b/sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_on_path_test.dart
index 0faa7bdbc518a0e627434f8960313601b77c1904..648519cfb3ab96f75332f446c9969d73d02ae55c 100644
--- a/sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_on_path_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_on_path_test.dart
@@ -1,8 +1,15 @@
+// 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 'dart:io';
+
 import 'package:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';
+
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
+
 main() {
   initConfig();
   integration("does not warn if the binstub directory is on the path", () {
@@ -15,9 +22,12 @@ main() {
           contents: [
               d.dir("bin", [d.file("script.dart", "main(args) => print('ok \$args');")])]);
     });
+
+    // Add the test's cache bin directory to the path.
     var binDir = p.dirname(Platform.executable);
     var separator = Platform.operatingSystem == "windows" ? ";" : ":";
     var path = "${Platform.environment["PATH"]}$separator$binDir";
+
     schedulePub(
         args: ["global", "activate", "foo"],
         output: isNot(contains("is not on your path")),