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

pkg/analysis_server/test/domain_analysis_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.
 
 import 'dart:async';
 
 import 'package:analysis_server/protocol/protocol.dart';
 import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
@@ skipping 375 matching lines @@
 class AnalysisDomainTest extends AbstractAnalysisTest {
   Map<String, List<AnalysisError>> filesErrors = {};
 
   void processNotification(Notification notification) {
     if (notification.event == ANALYSIS_ERRORS) {
       var decoded = new AnalysisErrorsParams.fromNotification(notification);
       filesErrors[decoded.file] = decoded.errors;
     }
   }
 
-  @override
-  void setUp() {
-    enableNewAnalysisDriver = true;
-    super.setUp();
-  }
-
   test_setRoots_packages() {
     // prepare package
     String pkgFile = '/packages/pkgA/libA.dart';
     resourceProvider.newFile(
         pkgFile,
         '''
 library lib_a;
 class A {}
 ''');
     resourceProvider.newFile(
@@ skipping 235 matching lines @@
       code = code.join('\n');
     }
     return code as String;
   }
 }
 
 @reflectiveTest
 class SetSubscriptionsTest extends AbstractAnalysisTest {
   Map<String, List<HighlightRegion>> filesHighlights = {};
 
+  @override
+  bool get enableNewAnalysisDriver => false;
+
   void processNotification(Notification notification) {
     if (notification.event == ANALYSIS_HIGHLIGHTS) {
       var params = new AnalysisHighlightsParams.fromNotification(notification);
       filesHighlights[params.file] = params.regions;
     }
   }
 
   test_afterAnalysis() async {
     addTestFile('int V = 42;');
     createProject();
@@ skipping 148 matching lines @@
     plugin.AnalysisSetSubscriptionsParams params =
         pluginManager.analysisSetSubscriptionsParams;
     expect(params, isNotNull);
     Map<plugin.AnalysisService, List<String>> subscriptions =
         params.subscriptions;
     expect(subscriptions, hasLength(1));
     List<String> files = subscriptions[plugin.AnalysisService.HIGHLIGHTS];
     expect(files, [testFile]);
   }
 }