Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/upgrade/report/shows_number_of_changed_dependencies_test.dart

Index: sdk/lib/_internal/pub_generated/test/upgrade/report/shows_number_of_changed_dependencies_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/upgrade/report/shows_number_of_changed_dependencies_test.dart b/sdk/lib/_internal/pub_generated/test/upgrade/report/shows_number_of_changed_dependencies_test.dart
index 400bb70fa1873789a6a2bd37e545023c812ac4af..2d0b6d7d1673d69480a684737cd2b5babf0b0206 100644
--- a/sdk/lib/_internal/pub_generated/test/upgrade/report/shows_number_of_changed_dependencies_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/upgrade/report/shows_number_of_changed_dependencies_test.dart
@@ -1,6 +1,12 @@
+// 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.
+
 library pub_tests;
+
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
+
 main() {
   initConfig();
   integration(
@@ -12,15 +18,23 @@ main() {
       builder.serve("b", "1.0.0");
       builder.serve("c", "2.0.0");
     });
+
     d.appDir({
       "a": "any"
     }).create();
+
+    // One dependency changed.
     pubUpgrade(output: new RegExp(r"Changed 1 dependency!$"));
+
+    // Remove one and add two.
     d.appDir({
       "b": "any",
       "c": "any"
     }).create();
+
     pubUpgrade(output: new RegExp(r"Changed 3 dependencies!$"));
+
+    // Don't change anything.
     pubUpgrade(output: new RegExp(r"No dependencies changed.$"));
   });
 }