Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/build/copies_browser_js_with_dependency_override_test.dart

Index: sdk/lib/_internal/pub_generated/test/build/copies_browser_js_with_dependency_override_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/build/copies_browser_js_with_dependency_override_test.dart b/sdk/lib/_internal/pub_generated/test/build/copies_browser_js_with_dependency_override_test.dart
index ca5f7c19625034d57fca9aa076a3ed759085570a..2f27b260ac7b008a6b1e9d84bc7a4060ede9eee9 100644
--- a/sdk/lib/_internal/pub_generated/test/build/copies_browser_js_with_dependency_override_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/build/copies_browser_js_with_dependency_override_test.dart
@@ -1,15 +1,28 @@
+// Copyright (c) 2013, 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';
 import 'utils.dart';
+
 main() {
+  // This is a regression test for http://dartbug.com/16617.
+
   initConfig();
+
   integration(
       "compiles dart.js and interop.js next to entrypoints when "
           "browser is a dependency_override",
       () {
+    // Dart2js can take a long time to compile dart code, so we increase the
+    // timeout to cope with that.
     currentSchedule.timeout *= 3;
+
     serveBrowserPackage();
+
     d.dir(appPath, [d.pubspec({
         "name": "myapp",
         "dependency_overrides": {
@@ -19,10 +32,13 @@ main() {
           d.dir(
               'web',
               [d.file('file.dart', 'void main() => print("hello");')])]).create();
+
     pubGet();
+
     schedulePub(
         args: ["build", "--all"],
         output: new RegExp(r'Built 4 files to "build".'));
+
     d.dir(
         appPath,
         [