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

sdk/lib/_internal/pub_generated/test/run/displays_transformer_logs_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 '../descriptor.dart' as d;
 import '../test_pub.dart';
-
 const SCRIPT = """
 import "package:myapp/lib.dart";
 main() {
   callLib();
 }
 """;
-
 const LIB = """
 callLib() {
   print("lib");
 }
 """;
-
-// Make it lazy so that "lib.dart" isn't transformed until after the process
-// is started. Otherwise, since this tranformer modifies .dart files, it will
-// be run while the transformers themselves are loading during pub run's
-// startup.
 const TRANSFORMER = """
 import 'dart:async';
 
 import 'package:barback/barback.dart';
 
 class LoggingTransformer extends Transformer implements LazyTransformer {
   LoggingTransformer.asPlugin();
 
   String get allowedExtensions => '.dart';
 
   void apply(Transform transform) {
     transform.logger.info('\${transform.primaryInput.id}.');
     transform.logger.warning('\${transform.primaryInput.id}.');
   }
 
   void declareOutputs(DeclaringTransform transform) {
     // TODO(rnystrom): Remove this when #19408 is fixed.
     transform.declareOutput(transform.primaryId);
   }
 }
 """;
-
 main() {
   initConfig();
   withBarbackVersions("any", () {
     integration('displays transformer log messages', () {
-      d.dir(appPath, [
-        d.pubspec({
+      d.dir(appPath, [d.pubspec({
           "name": "myapp",
           "transformers": ["myapp/src/transformer"]
         }),
-        d.dir("lib", [
-          d.file("lib.dart", LIB),
-          d.dir("src", [
-            d.file("transformer.dart", TRANSFORMER)
-          ])
-        ]),
-        d.dir("bin", [
-          d.file("script.dart", SCRIPT)
-        ])
-      ]).create();
-
+            d.dir(
+                "lib",
+                [
+                    d.file("lib.dart", LIB),
+                    d.dir("src", [d.file("transformer.dart", TRANSFORMER)])]),
+            d.dir("bin", [d.file("script.dart", SCRIPT)])]).create();
       createLockFile('myapp', pkg: ['barback']);
-
       var pub = pubRun(args: ["script"]);
-
-      // Note that the info log is only displayed here because the test
-      // harness runs pub in verbose mode. By default, only the warning would
-      // be shown.
       pub.stdout.expect("[Info from Logging]:");
       pub.stdout.expect("myapp|bin/script.dart.");
-
       pub.stderr.expect("[Warning from Logging]:");
       pub.stderr.expect("myapp|bin/script.dart.");
-
       pub.stdout.expect("[Info from Logging]:");
       pub.stdout.expect("myapp|lib/lib.dart.");
-
       pub.stderr.expect("[Warning from Logging]:");
       pub.stderr.expect("myapp|lib/lib.dart.");
-
       pub.stdout.expect("lib");
       pub.shouldExit();
     });
   });
 }