Apply transformations after comparing to golden files.

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

Index: pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_generic_return.dart.strong.expect
diff --git a/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_generic_return.dart.strong.expect b/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_generic_return.dart.strong.expect
index 0c001f5016ba931be1ebdcc26bece374fcc253f0..2417d1658864b3ebde14f5b9c7792726579274e4 100644
--- a/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_generic_return.dart.strong.expect
+++ b/pkg/front_end/testcases/inference/future_union_downwards_generic_method_with_generic_return.dart.strong.expect
@@ -5,32 +5,8 @@ import "dart:async" as asy;
 
 static method id<T extends core::Object>(self::id::T x) → self::id::T
   return x;
-static method test() → 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::String> f;
-        asy::_awaitHelper(self::id<asy::FutureOr<core::String>>(f), :async_op_then, :async_op_error, :async_op);
-        [yield] null;
-        core::String s = :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 test() → dynamic async {
+  asy::Future<core::String> f;
+  core::String s = await self::id<asy::FutureOr<core::String>>(f);
 }
 static method main() → dynamic {}