anchor.diff:    Future<void> test_static_const_x() async {
       await _checkContainers(
         line: 'static const ^',
  -      validator: (
  -        response, {
  -        required bool isClass,
  -        required bool isMixin,
  -      }) {
  +      validator: (context, response) {
           check(response).suggestions
             ..withKindKeyword.matchesInAnyOrder(
               {
  
positive.code:   Future<void> test_static_final_x() async {
      await _checkContainers(
        line: 'static final ^',
        validator: (
          response, {
          required bool isClass,
          required bool isMixin,
        }) {
          check(response).suggestions
            ..withKindKeyword.matchesInAnyOrder(
              {
  
negative.code:   $line
  }
  ''');
        validator(_Context(), response);
      }
      // mixin
      {
  