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

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

Index: sdk/lib/_internal/pub_generated/test/global/binstubs/unknown_explicit_executable_test.dart
diff --git a/sdk/lib/_internal/pub/test/global/binstubs/unknown_explicit_executable_test.dart b/sdk/lib/_internal/pub_generated/test/global/binstubs/unknown_explicit_executable_test.dart
similarity index 65%
copy from sdk/lib/_internal/pub/test/global/binstubs/unknown_explicit_executable_test.dart
copy to sdk/lib/_internal/pub_generated/test/global/binstubs/unknown_explicit_executable_test.dart
index ae1e0e0f3978dd17d6311f6974d79454ee8e4c04..e272cb6c0cb3e0e031f092e349eeac0fe8dc0174 100644
--- a/sdk/lib/_internal/pub/test/global/binstubs/unknown_explicit_executable_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/global/binstubs/unknown_explicit_executable_test.dart
@@ -11,22 +11,27 @@ import '../../test_pub.dart';
 main() {
   initConfig();
   integration("errors on an unknown explicit executable", () {
-    d.dir("foo", [
-      d.pubspec({
+    d.dir("foo", [d.pubspec({
         "name": "foo",
         "executables": {
           "one": "one"
         }
       }),
-      d.dir("bin", [
-        d.file("one.dart", "main() => print('ok');")
-      ])
-    ]).create();
+          d.dir("bin", [d.file("one.dart", "main() => print('ok');")])]).create();
 
-    var pub = startPub(args: [
-      "global", "activate", "--source", "path", "../foo",
-      "-x", "who", "-x", "one", "--executable", "wat"
-    ]);
+    var pub = startPub(
+        args: [
+            "global",
+            "activate",
+            "--source",
+            "path",
+            "../foo",
+            "-x",
+            "who",
+            "-x",
+            "one",
+            "--executable",
+            "wat"]);
 
     pub.stdout.expect(consumeThrough("Installed executable one."));
     pub.stderr.expect("Unknown executables wat and who.");