Store the async-await compiled pub code directly in the repo.

sdk/lib/_internal/pub_generated/test/global/activate/ignores_active_version_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 '../../test_pub.dart';
-
 main() {
   initConfig();
-  integration('ignores previously activated version',
-        () {
+  integration('ignores previously activated version', () {
     servePackages((builder) {
       builder.serve("foo", "1.2.3");
       builder.serve("foo", "1.3.0");
     });
-
-    // Activate 1.2.3.
     schedulePub(args: ["global", "activate", "foo", "1.2.3"]);
-
-    // Activating it again resolves to the new best version.
     schedulePub(args: ["global", "activate", "foo", ">1.0.0"], output: """
         Package foo is currently active at version 1.2.3.
         Resolving dependencies...
         + foo 1.3.0
         Downloading foo 1.3.0...
         Precompiling executables...
         Loading source assets...
         Activated foo 1.3.0.""");
   });
 }