Refactor visitSendSet for super compounds and assignment.

tests/language/language_dart2js.status

Index: tests/language/language_dart2js.status
diff --git a/tests/language/language_dart2js.status b/tests/language/language_dart2js.status
index a343d6f460ca5d95884ceacf76215d699caee120..ddcecbbd58373f285e5d9d53125be50f70506bed 100644
--- a/tests/language/language_dart2js.status
+++ b/tests/language/language_dart2js.status
@@ -466,7 +466,6 @@ deferred_type_dependency_test/is: Crash # (main()async{await l...  cannot handle
 deferred_type_dependency_test/none: Crash # (main()async{await l...  cannot handle async/sync*/async* functions
 deferred_type_dependency_test/type_annotation: Crash # (main()async{await l...  cannot handle async/sync*/async* functions
 enum_mirror_test: Crash # (static Iterable<Str...  cannot handle async/sync*/async* functions
-final_super_field_set_test/01: RuntimeError # Please triage this failure.
 first_class_types_test: RuntimeError # Please triage this failure.
 flatten_test/01: Crash # (test()async{int x=await new Derived<int>();}): cannot handle async/sync*/async* functions
 flatten_test/02: Crash # (test()async{Future<int> f()async=>new Derived<int>();}): cannot handle async/sync*/async* functions