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

sdk/lib/_internal/pub_generated/test/transformers_needed_by_transformers/utils.dart

-// Copyright (c) 2014, 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 'package:path/path.dart' as p;
 import 'package:scheduled_test/scheduled_test.dart';
-
 import '../../lib/src/barback/cycle_exception.dart';
 import '../../lib/src/barback/transformers_needed_by_transformers.dart';
 import '../../lib/src/entrypoint.dart';
 import '../../lib/src/io.dart';
 import '../../lib/src/package.dart';
 import '../../lib/src/package_graph.dart';
 import '../../lib/src/source/path.dart';
 import '../../lib/src/system_cache.dart';
 import '../../lib/src/utils.dart';
 import '../test_pub.dart';
-
-/// Expects that [computeTransformersNeededByTransformers] will return a graph
-/// matching [expected] when run on the package graph defined by packages in
-/// the sandbox.
 void expectDependencies(Map<String, Iterable<String>> expected) {
   expected = mapMap(expected, value: (_, ids) => ids.toSet());
-
   schedule(() {
     var result = mapMap(
         computeTransformersNeededByTransformers(_loadPackageGraph()),
         key: (id, _) => id.toString(),
         value: (_, ids) => ids.map((id) => id.toString()).toSet());
     expect(result, equals(expected));
   }, "expect dependencies to match $expected");
 }
-
-/// Expects that [computeTransformersNeededByTransformers] will throw an
-/// exception matching [matcher] when run on the package graph defiend by
-/// packages in the sandbox.
 void expectException(matcher) {
   schedule(() {
-    expect(() => computeTransformersNeededByTransformers(_loadPackageGraph()),
+    expect(
+        () => computeTransformersNeededByTransformers(_loadPackageGraph()),
         throwsA(matcher));
   }, "expect an exception: $matcher");
 }
-
-/// Expects that [computeTransformersNeededByTransformers] will throw a
-/// [CycleException] with the given [steps] when run on the package graph
-/// defiend by packages in the sandbox.
 void expectCycleException(Iterable<String> steps) {
   expectException(predicate((error) {
     expect(error, new isInstanceOf<CycleException>());
     expect(error.steps, equals(steps));
     return true;
   }, "cycle exception:\n${steps.map((step) => "  $step").join("\n")}"));
 }
-
-/// Loads a [PackageGraph] from the packages in the sandbox.
-///
-/// This graph will also include barback and its transitive dependencies from
-/// the repo.
 PackageGraph _loadPackageGraph() {
-  // Load the sandbox packages.
   var packages = {};
-
   var systemCache = new SystemCache(p.join(sandboxDir, cachePath));
   systemCache.sources
       ..register(new PathSource())
       ..setDefault('path');
   var entrypoint = new Entrypoint(p.join(sandboxDir, appPath), systemCache);
-
   for (var package in listDir(sandboxDir)) {
     if (!fileExists(p.join(package, 'pubspec.yaml'))) continue;
     var packageName = p.basename(package);
-    packages[packageName] = new Package.load(
-        packageName, package, systemCache.sources);
+    packages[packageName] =
+        new Package.load(packageName, package, systemCache.sources);
   }
-
   loadPackage(packageName) {
     if (packages.containsKey(packageName)) return;
     packages[packageName] = new Package.load(
-        packageName, p.join(pkgPath, packageName), systemCache.sources);
+        packageName,
+        p.join(pkgPath, packageName),
+        systemCache.sources);
     for (var dep in packages[packageName].dependencies) {
       loadPackage(dep.name);
     }
   }
-
   loadPackage('barback');
-
   return new PackageGraph(entrypoint, null, packages);
 }
-
-/// Returns the contents of a no-op transformer that imports each URL in
-/// [imports].
 String transformer([Iterable<String> imports]) {
   if (imports == null) imports = [];
-
-  var buffer = new StringBuffer()
-      ..writeln('import "package:barback/barback.dart";');
+  var buffer =
+      new StringBuffer()..writeln('import "package:barback/barback.dart";');
   for (var import in imports) {
     buffer.writeln('import "$import";');
   }
-
   buffer.writeln("""
 NoOpTransformer extends Transformer {
   bool isPrimary(AssetId id) => true;
   void apply(Transform transform) {}
 }
 """);
-
   return buffer.toString();
 }