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

sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_no_executables_test.dart

Index: sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_no_executables_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/binstubs/does_not_warn_if_no_executables_test.dart b/sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_no_executables_test.dart
similarity index 71%
copy from sdk/lib/_internal/pub/test/global/binstubs/does_not_warn_if_no_executables_test.dart
copy to sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_no_executables_test.dart
index 565e23afbdcc4e7f6d6e9fc5f4cb6f5da53290ba..ac6348a1d6726edfb3817ba9869c5a691470595f 100644
--- a/sdk/lib/_internal/pub/test/global/binstubs/does_not_warn_if_no_executables_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/global/binstubs/does_not_warn_if_no_executables_test.dart
@@ -14,14 +14,15 @@ main() {
   initConfig();
   integration("does not warn if the package has no executables", () {
     servePackages((builder) {
-      builder.serve("foo", "1.0.0", contents: [
-        d.dir("bin", [
-          d.file("script.dart", "main(args) => print('ok \$args');")
-        ])
-      ]);
+      builder.serve(
+          "foo",
+          "1.0.0",
+          contents: [
+              d.dir("bin", [d.file("script.dart", "main(args) => print('ok \$args');")])]);
     });
 
-    schedulePub(args: ["global", "activate", "foo"],
+    schedulePub(
+        args: ["global", "activate", "foo"],
         output: isNot(contains("is not on your path")));
   });
-}
+}