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

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

Index: sdk/lib/_internal/pub_generated/test/serve/gets_first_if_git_url_changed_test.dart
diff --git a/sdk/lib/_internal/pub/test/serve/gets_first_if_git_url_changed_test.dart b/sdk/lib/_internal/pub_generated/test/serve/gets_first_if_git_url_changed_test.dart
similarity index 56%
copy from sdk/lib/_internal/pub/test/serve/gets_first_if_git_url_changed_test.dart
copy to sdk/lib/_internal/pub_generated/test/serve/gets_first_if_git_url_changed_test.dart
index 71e98adbcca97b20aea68b95d75374df795172bf..c41af7d2970f6d8b732eb264a9c9cad975b2499a 100644
--- a/sdk/lib/_internal/pub/test/serve/gets_first_if_git_url_changed_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/serve/gets_first_if_git_url_changed_test.dart
@@ -10,27 +10,31 @@ import 'utils.dart';
 
 main() {
   initConfig();
-  integration("gets first if a git dependency's url doesn't match the one in "
-      "the lock file", () {
-    d.git("foo-before.git", [
-      d.libPubspec("foo", "1.0.0"),
-      d.libDir("foo", "before")
-    ]).create();
-
-    d.git("foo-after.git", [
-      d.libPubspec("foo", "1.0.0"),
-      d.libDir("foo", "after")
-    ]).create();
+  integration(
+      "gets first if a git dependency's url doesn't match the one in "
+          "the lock file",
+      () {
+    d.git(
+        "foo-before.git",
+        [d.libPubspec("foo", "1.0.0"), d.libDir("foo", "before")]).create();
+
+    d.git(
+        "foo-after.git",
+        [d.libPubspec("foo", "1.0.0"), d.libDir("foo", "after")]).create();
 
     d.appDir({
-      "foo": {"git": "../foo-before.git"}
+      "foo": {
+        "git": "../foo-before.git"
+      }
     }).create();
 
     pubGet();
 
     // Change the path in the pubspec.
     d.appDir({
-      "foo": {"git": "../foo-after.git"}
+      "foo": {
+        "git": "../foo-after.git"
+      }
     }).create();
 
     pubServe(shouldGetFirst: true);