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

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

Index: sdk/lib/_internal/pub_generated/test/dart2js/ignores_entrypoints_in_lib_test.dart
diff --git a/sdk/lib/_internal/pub/test/dart2js/ignores_entrypoints_in_lib_test.dart b/sdk/lib/_internal/pub_generated/test/dart2js/ignores_entrypoints_in_lib_test.dart
similarity index 65%
copy from sdk/lib/_internal/pub/test/dart2js/ignores_entrypoints_in_lib_test.dart
copy to sdk/lib/_internal/pub_generated/test/dart2js/ignores_entrypoints_in_lib_test.dart
index 73dda873879b555896218137e5131486b4f918d9..4c1a880826d280f2e4470706f6f64473781c0fde 100644
--- a/sdk/lib/_internal/pub/test/dart2js/ignores_entrypoints_in_lib_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/dart2js/ignores_entrypoints_in_lib_test.dart
@@ -11,26 +11,20 @@ import '../serve/utils.dart';
 main() {
   initConfig();
   setUp(() {
-    d.dir(appPath, [
-      d.appPubspec(),
-      d.dir('lib', [
-        d.file('file.dart', 'void main() => print("hello");'),
-      ]),
-      d.dir('web', [
-        d.file('index.html', 'html'),
-      ])
-    ]).create();
+    d.dir(
+        appPath,
+        [
+            d.appPubspec(),
+            d.dir('lib', [d.file('file.dart', 'void main() => print("hello");'),]),
+            d.dir('web', [d.file('index.html', 'html'),])]).create();
   });
 
   integration("build ignores Dart entrypoints in lib", () {
-    schedulePub(args: ["build", "--all"],
+    schedulePub(
+        args: ["build", "--all"],
         output: new RegExp(r'Built 1 file to "build".'));
 
-    d.dir(appPath, [
-      d.dir('build', [
-        d.nothing('lib')
-      ])
-    ]).validate();
+    d.dir(appPath, [d.dir('build', [d.nothing('lib')])]).validate();
   });
 
   integration("serve ignores Dart entrypoints in lib", () {