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

sdk/lib/_internal/pub_generated/test/dart2js/outputs_deferred_libraries_test.dart

Index: sdk/lib/_internal/pub_generated/test/dart2js/outputs_deferred_libraries_test.dart
diff --git a/sdk/lib/_internal/pub/test/dart2js/outputs_deferred_libraries_test.dart b/sdk/lib/_internal/pub_generated/test/dart2js/outputs_deferred_libraries_test.dart
similarity index 56%
copy from sdk/lib/_internal/pub/test/dart2js/outputs_deferred_libraries_test.dart
copy to sdk/lib/_internal/pub_generated/test/dart2js/outputs_deferred_libraries_test.dart
index 7a0f4ae69f6e985dcdad49848020f243069f6f8f..fc1ac70121769900f84525b4b85b07f22ebe67c9 100644
--- a/sdk/lib/_internal/pub/test/dart2js/outputs_deferred_libraries_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/dart2js/outputs_deferred_libraries_test.dart
@@ -40,26 +40,32 @@ main() {
     // timeout to cope with that.
     currentSchedule.timeout *= 3;
 
-    d.dir(appPath, [
-      d.appPubspec(),
-      d.dir('web', [
-        d.file('main.dart', MAIN),
-        d.file('a.dart', A),
-        d.file('b.dart', B)
-      ])
-    ]).create();
+    d.dir(
+        appPath,
+        [
+            d.appPubspec(),
+            d.dir(
+                'web',
+                [
+                    d.file('main.dart', MAIN),
+                    d.file('a.dart', A),
+                    d.file('b.dart', B)])]).create();
 
-    schedulePub(args: ["build"],
+    schedulePub(
+        args: ["build"],
         output: new RegExp(r'Built 3 files to "build".'));
 
-    d.dir(appPath, [
-      d.dir('build', [
-        d.dir('web', [
-          d.matcherFile('main.dart.js', isNot(isEmpty)),
-          d.matcherFile('main.dart.js_1.part.js', isNot(isEmpty)),
-          d.matcherFile('main.dart.js_2.part.js', isNot(isEmpty)),
-        ])
-      ])
-    ]).validate();
+    d.dir(
+        appPath,
+        [
+            d.dir(
+                'build',
+                [
+                    d.dir(
+                        'web',
+                        [
+                            d.matcherFile('main.dart.js', isNot(isEmpty)),
+                            d.matcherFile('main.dart.js_1.part.js', isNot(isEmpty)),
+                            d.matcherFile('main.dart.js_2.part.js', isNot(isEmpty)),])])]).validate();
   });
 }