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

sdk/lib/_internal/pub_generated/test/serve/does_not_watch_compiled_js_files_test.dart

Index: sdk/lib/_internal/pub_generated/test/serve/does_not_watch_compiled_js_files_test.dart
diff --git a/sdk/lib/_internal/pub/test/serve/does_not_watch_compiled_js_files_test.dart b/sdk/lib/_internal/pub_generated/test/serve/does_not_watch_compiled_js_files_test.dart
similarity index 60%
copy from sdk/lib/_internal/pub/test/serve/does_not_watch_compiled_js_files_test.dart
copy to sdk/lib/_internal/pub_generated/test/serve/does_not_watch_compiled_js_files_test.dart
index 4d620f639f47418bf239183fb5a0973ac2e2be7c..41b7568bf91462b38c0bc5a35ba82db31313c0fa 100644
--- a/sdk/lib/_internal/pub/test/serve/does_not_watch_compiled_js_files_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/serve/does_not_watch_compiled_js_files_test.dart
@@ -11,25 +11,24 @@ import 'utils.dart';
 main() {
   initConfig();
   integration("does not watch changes to compiled JS files in the package", () {
-    d.dir(appPath, [
-      d.appPubspec(),
-      d.dir("web", [
-        d.file("index.html", "body")
-      ])
-    ]).create();
+    d.dir(
+        appPath,
+        [d.appPubspec(), d.dir("web", [d.file("index.html", "body")])]).create();
 
     pubServe();
     waitForBuildSuccess();
     requestShouldSucceed("index.html", "body");
 
-    d.dir(appPath, [
-      d.dir("web", [
-        d.file('file.dart', 'void main() => print("hello");'),
-        d.file("other.dart.js", "should be ignored"),
-        d.file("other.dart.js.map", "should be ignored"),
-        d.file("other.dart.precompiled.js", "should be ignored")
-      ])
-    ]).create();
+    d.dir(
+        appPath,
+        [
+            d.dir(
+                "web",
+                [
+                    d.file('file.dart', 'void main() => print("hello");'),
+                    d.file("other.dart.js", "should be ignored"),
+                    d.file("other.dart.js.map", "should be ignored"),
+                    d.file("other.dart.precompiled.js", "should be ignored")])]).create();
 
     waitForBuildSuccess();
     requestShouldSucceed("file.dart", 'void main() => print("hello");');