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

sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_lazy_transformer_test.dart

Index: sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_lazy_transformer_test.dart
diff --git a/sdk/lib/_internal/pub/test/transformer/exclusion/works_on_lazy_transformer_test.dart b/sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_lazy_transformer_test.dart
similarity index 71%
copy from sdk/lib/_internal/pub/test/transformer/exclusion/works_on_lazy_transformer_test.dart
copy to sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_lazy_transformer_test.dart
index 8fa5b4fc2b48b72cb7d16138708f86d984ae91b0..5fcdeea9add173e23bba36520830a46f02f81773 100644
--- a/sdk/lib/_internal/pub/test/transformer/exclusion/works_on_lazy_transformer_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/transformer/exclusion/works_on_lazy_transformer_test.dart
@@ -15,25 +15,19 @@ main() {
   initConfig();
   withBarbackVersions("any", () {
     integration("works on a lazy transformer", () {
-      d.dir(appPath, [
-        d.pubspec({
+      d.dir(appPath, [d.pubspec({
           "name": "myapp",
-          "transformers": [
-            {
+          "transformers": [{
               "myapp": {
                 "\$include": ["web/a.txt", "web/b.txt"],
                 "\$exclude": "web/a.txt"
               }
-            }
-          ]
+            }]
         }),
-        d.dir("lib", [d.file("transformer.dart", LAZY_TRANSFORMER)]),
-        d.dir("web", [
-          d.file("a.txt", "a"),
-          d.file("b.txt", "b"),
-          d.file("c.txt", "c")
-        ])
-      ]).create();
+            d.dir("lib", [d.file("transformer.dart", LAZY_TRANSFORMER)]),
+            d.dir(
+                "web",
+                [d.file("a.txt", "a"), d.file("b.txt", "b"), d.file("c.txt", "c")])]).create();
 
       createLockFile('myapp', pkg: ['barback']);
 
@@ -43,9 +37,9 @@ main() {
 
       requestShould404("a.out");
       requestShouldSucceed("b.out", isNot(isEmpty));
-      server.stdout.expect(consumeThrough(emitsLines(
-          "[Info from LazyRewrite]:\n"
-          "Rewriting myapp|web/b.txt.")));
+      server.stdout.expect(
+          consumeThrough(
+              emitsLines("[Info from LazyRewrite]:\n" "Rewriting myapp|web/b.txt.")));
       server.stdout.expect(consumeThrough("Build completed successfully"));
 
       requestShould404("c.out");