Reverse the sense of the flag to make it easier to find test that need to be converted

pkg/analysis_server/test/analysis/notification_implemented_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.analysis.notification.implemented;
 
 import 'dart:async';
 
 import 'package:analysis_server/protocol/protocol.dart';
 import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../analysis_abstract.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(AnalysisNotificationImplementedTest);
   });
 }
 
 @reflectiveTest
 class AnalysisNotificationImplementedTest extends AbstractAnalysisTest {
   List<ImplementedClass> implementedClasses;
   List<ImplementedMember> implementedMembers;
 
+  @override
+  bool get enableNewAnalysisDriver => false;
+
   /**
    * Validates that there is an [ImplementedClass] at the offset of [search].
    *
    * If [length] is not specified explicitly, then length of an identifier
    * from [search] is used.
    */
   void assertHasImplementedClass(String search, [int length = -1]) {
     int offset = findOffset(search);
     if (length == -1) {
       length = findIdentifierLength(search);
@@ skipping 391 matching lines @@
       if (times == 0 || implementedClasses != null) {
         return new Future.value();
       }
       return new Future.delayed(
           new Duration(milliseconds: 1), () => waitForNotification(times - 1));
     }
 
     return waitForNotification(30000);
   }
 }