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

sdk/lib/_internal/pub_generated/test/run/runs_a_generated_script_test.dart

Index: sdk/lib/_internal/pub_generated/test/run/runs_a_generated_script_test.dart
diff --git a/sdk/lib/_internal/pub/test/run/runs_a_generated_script_test.dart b/sdk/lib/_internal/pub_generated/test/run/runs_a_generated_script_test.dart
similarity index 66%
copy from sdk/lib/_internal/pub/test/run/runs_a_generated_script_test.dart
copy to sdk/lib/_internal/pub_generated/test/run/runs_a_generated_script_test.dart
index cd29aa77a7577e034aa2bb93b30dc6a185ff3c25..3adbb952d1e0efce862f964031cf585cf1626741 100644
--- a/sdk/lib/_internal/pub/test/run/runs_a_generated_script_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/run/runs_a_generated_script_test.dart
@@ -1,10 +1,5 @@
-// 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 '../descriptor.dart' as d;
 import '../test_pub.dart';
-
 const TRANSFORMER = """
 import 'dart:async';
 
@@ -22,26 +17,24 @@ class DartTransformer extends Transformer {
   }
 }
 """;
-
 main() {
   initConfig();
   withBarbackVersions("any", () {
     integration('runs a script generated from scratch by a transformer', () {
-      d.dir(appPath, [
-        d.pubspec({
+      d.dir(appPath, [d.pubspec({
           "name": "myapp",
           "transformers": ["myapp/src/transformer"]
         }),
-        d.dir("lib", [d.dir("src", [
-          d.file("transformer.dart", TRANSFORMER),
-          d.file("primary.in", "")
-        ])])
-      ]).create();
-
+            d.dir(
+                "lib",
+                [
+                    d.dir(
+                        "src",
+                        [
+                            d.file("transformer.dart", TRANSFORMER),
+                            d.file("primary.in", "")])])]).create();
       createLockFile('myapp', pkg: ['barback']);
-
       var pub = pubRun(args: ["script"]);
-
       pub.stdout.expect("generated");
       pub.shouldExit();
     });