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

sdk/lib/_internal/pub_generated/test/transformer/configuration/with_configuration_only_instantiates_configurable_transformers_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 'dart:convert';
 
 import '../../descriptor.dart' as d;
 import '../../test_pub.dart';
@@ skipping 31 matching lines @@
       var id = transform.primaryInput.id.changeExtension(".out");
       transform.addOutput(new Asset.fromString(id, "\$contents.out"));
     });
   }
 }
 """;
 
 main() {
   initConfig();
   withBarbackVersions("any", () {
-     integration("with configuration, only instantiates configurable "
-         "transformers", () {
-       var configuration = {"param": ["list", "of", "values"]};
+    integration(
+        "with configuration, only instantiates configurable " "transformers",
+        () {
+      var configuration = {
+        "param": ["list", "of", "values"]
+      };
 
-       d.dir(appPath, [
-         d.pubspec({
-           "name": "myapp",
-           "transformers": [{"myapp/src/transformer": configuration}]
-         }),
-         d.dir("lib", [d.dir("src", [
-           d.file("transformer.dart", transformer)
-         ])]),
-         d.dir("web", [
-           d.file("foo.txt", "foo")
-         ])
-       ]).create();
+      d.dir(appPath, [d.pubspec({
+          "name": "myapp",
+          "transformers": [{
+              "myapp/src/transformer": configuration
+            }]
+        }),
+            d.dir("lib", [d.dir("src", [d.file("transformer.dart", transformer)])]),
+            d.dir("web", [d.file("foo.txt", "foo")])]).create();
 
-       createLockFile('myapp', pkg: ['barback']);
+      createLockFile('myapp', pkg: ['barback']);
 
-       var server = pubServe();
-       requestShouldSucceed("foo.json", JSON.encode(configuration));
-       requestShould404("foo.out");
-       endPubServe();
-     });
+      var server = pubServe();
+      requestShouldSucceed("foo.json", JSON.encode(configuration));
+      requestShould404("foo.out");
+      endPubServe();
+    });
   });
-}
+}