Revert "Use native async/await support in pub."

sdk/lib/_internal/pub_generated/test/serve/does_not_get_first_if_locked_matches_override_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.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';
 import 'utils.dart';
 
 main() {
   // This is a regression test for https://dartbug.com/15180.
   initConfig();
   integration("does not get if the locked version matches the override", () {
-    d.dir("foo", [
-      d.libPubspec("foo", "0.0.1"),
-      d.libDir("foo")
-    ]).create();
+    d.dir("foo", [d.libPubspec("foo", "0.0.1"), d.libDir("foo")]).create();
 
     // Get "foo" into the lock file.
-    d.dir(appPath, [
-      d.pubspec({
+    d.dir(appPath, [d.pubspec({
         "name": "myapp",
         "dependencies": {
           "foo": "any"
         },
         "dependency_overrides": {
           "foo": {
             "path": "../foo",
             "version": ">=0.0.1"
           }
         }
-      })
-    ]).create();
+      })]).create();
     pubGet();
 
     pubServe(shouldGetFirst: false);
     requestShouldSucceed("packages/foo/foo.dart", 'main() => "foo";');
     endPubServe();
   });
 }