anchor.diff:    }
   
     test_class_fields_late_final_initialized() async {
  -    featureSet = enableNnbd;
  +    featureSet = featureSetNullSafe;
       var library = await checkLibrary('''
   class C {
     late final int foo = 0;
  
positive.code:   }
  
    test_class_field_static_late() async {
      featureSet = enableNnbd;
      var library = await checkLibrary('class C { static late int i; }');
      checkElementText(library, r'''
  class C {
  
negative.code:   }
  
    test_inferred_type_nullability_class_ref_none() async {
      featureSet = featureSetNullSafe;
      addSource('/a.dart', 'int f() => 0;');
      var library = await checkLibrary('''
  import 'a.dart';
  