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

sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart

Index: sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart
diff --git a/sdk/lib/_internal/pub/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart b/sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart
similarity index 60%
copy from sdk/lib/_internal/pub/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart
copy to sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart
index 5fd71a61a870f4d483b18254d3440c7c38d0e2eb..60998e1f37f854340d3ece7a40fcb16662de5e50 100644
--- a/sdk/lib/_internal/pub/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/snapshot/doesnt_snapshot_an_entrypoint_dependency_test.dart
@@ -12,16 +12,23 @@ import '../test_pub.dart';
 
 main() {
   initConfig();
-  integration("doesn't create a snapshot for a package that depends on the "
-      "entrypoint", () {
+  integration(
+      "doesn't create a snapshot for a package that depends on the " "entrypoint",
+      () {
     servePackages((builder) {
-      builder.serve("foo", "1.2.3", deps: {'bar': '1.2.3'}, contents: [
-        d.dir("bin", [d.file("hello.dart", "void main() => print('hello!');")])
-      ]);
-      builder.serve("bar", "1.2.3", deps: {'myapp': 'any'});
+      builder.serve("foo", "1.2.3", deps: {
+        'bar': '1.2.3'
+      },
+          contents: [
+              d.dir("bin", [d.file("hello.dart", "void main() => print('hello!');")])]);
+      builder.serve("bar", "1.2.3", deps: {
+        'myapp': 'any'
+      });
     });
 
-    d.appDir({"foo": "1.2.3"}).create();
+    d.appDir({
+      "foo": "1.2.3"
+    }).create();
 
     pubGet();