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

sdk/lib/_internal/pub_generated/test/serve/does_not_get_first_if_locked_version_matches_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() {
   initConfig();
-  integration("does not get if the locked version of a dependency is allowed "
-      "by the pubspec's constraint", () {
-    d.dir("foo", [
-      d.libPubspec("foo", "0.0.1"),
-      d.libDir("foo")
-    ]).create();
+  integration(
+      "does not get if the locked version of a dependency is allowed "
+          "by the pubspec's constraint",
+      () {
+    d.dir("foo", [d.libPubspec("foo", "0.0.1"), d.libDir("foo")]).create();
 
     // Get "foo" into the lock file.
-    d.dir(appPath, [
-      d.appPubspec({
+    d.dir(appPath, [d.appPubspec({
         "foo": {
           "path": "../foo",
           "version": ">=0.0.1"
         },
-      })
-    ]).create();
+      })]).create();
     pubGet();
 
     // Change the version.
-    d.dir(appPath, [
-      d.appPubspec({
+    d.dir(appPath, [d.appPubspec({
         "foo": {
           "path": "../foo",
           "version": "<2.0.0"
         },
-      })
-    ]).create();
+      })]).create();
 
     pubServe(shouldGetFirst: false);
     requestShouldSucceed("packages/foo/foo.dart", 'main() => "foo";');
     endPubServe();
   });
 }