anchor.diff:  
   @reflectiveTest
   class AnalysisNotificationHighlightsTest extends HighlightsTestSupport {
  +  void assertHighlightText(TestCode testCode, int index, String expected) {
  +    var actual = _getHighlightText(testCode, index);
  +    if (actual != expected) {
  +      print(testCode.code.trimRight());
  +      print('-' * 32);
  +      print(actual);
  +    }
  +    expect(actual, expected);
  +  }
  +
     Future<void> test_ANNOTATION_hasArguments() async {
       addTestFile('''
   class AAA {
  
positive.code: import 'package:analysis_server/protocol/protocol.dart';
  import 'package:analysis_server/protocol/protocol_constants.dart';
  import 'package:analysis_server/protocol/protocol_generated.dart';
  import 'package:analyzer_plugin/protocol/protocol_common.dart';
  import 'package:test/test.dart';
  import 'package:test_reflective_loader/test_reflective_loader.dart';
  
  
negative.code:   }
  
    Future<void> test_enum_constant() async {
      var testCode = TestCode.parse(r'''
  enum MyEnum {AAA, BBB}
  
  void f() {
  