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

sdk/lib/_internal/pub_generated/test/global/activate/constraint_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('chooses the highest version that matches the constraint', () {
     servePackages((builder) {
       builder.serve("foo", "1.0.0");
       builder.serve("foo", "1.0.1");
       builder.serve("foo", "1.1.0");
       builder.serve("foo", "1.2.3");
     });
-
     schedulePub(args: ["global", "activate", "foo", "<1.1.0"]);
-
-    d.dir(cachePath, [
-      d.dir('global_packages', [
-        d.dir('foo', [d.matcherFile('pubspec.lock', contains('1.0.1'))])
-      ])
-    ]).validate();
+    d.dir(
+        cachePath,
+        [
+            d.dir(
+                'global_packages',
+                [
+                    d.dir('foo', [d.matcherFile('pubspec.lock', contains('1.0.1'))])])]).validate();
   });
 }