Apply transformations after comparing to golden files.

pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_future_return.dart.strong.expect

Index: pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_future_return.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_future_return.dart.strong.expect b/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_future_return.dart.strong.expect
index d0d5c9397dead2815d5d47e3a23573df3c6ae48c..0043d40d7988d2b20d00410613b79862cc4a29ad 100644
--- a/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_future_return.dart.strong.expect
+++ b/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_future_return.dart.strong.expect
@@ -8,33 +8,9 @@ class A extends core::Object {
     : super core::Object::•()
     ;
 }
-static method foo() → dynamic /* originally async */ {
-  final asy::Completer<asy::FutureOr<dynamic>> :completer = asy::Completer::sync<asy::FutureOr<dynamic>>();
-  asy::FutureOr<dynamic> :return_value;
-  dynamic :async_op_then;
-  dynamic :async_op_error;
-  dynamic :await_jump_var = 0;
-  dynamic :await_ctx_var;
-  dynamic :saved_try_context_var0;
-  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
-    try {
-      #L1:
-      {
-        asy::Future<core::List<self::A>> f1 = null;
-        asy::Future<core::List<self::A>> f2 = null;
-        asy::_awaitHelper(asy::Future::wait<core::List<self::A>>(<asy::Future<core::List<self::A>>>[f1, f2]), :async_op_then, :async_op_error, :async_op);
-        [yield] null;
-        core::List<core::List<self::A>> merged = :result;
-      }
-      :completer.complete(:return_value);
-      return;
-    }
-    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
-      :completer.completeError(:exception, :stack_trace);
-    }
-  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
-  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
-  asy::Future::microtask<dynamic>(:async_op);
-  return :completer.future;
+static method foo() → dynamic async {
+  asy::Future<core::List<self::A>> f1 = null;
+  asy::Future<core::List<self::A>> f2 = null;
+  core::List<core::List<self::A>> merged = await asy::Future::wait<core::List<self::A>>(<asy::Future<core::List<self::A>>>[f1, f2]);
 }
 static method main() → dynamic {}