Update the analysis server integration tests to always run on the analysis driver.

pkg/analysis_server/test/integration/analysis/get_errors_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.integration.analysis.get.errors;
 
 import 'dart:async';
 
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../integration_tests.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(GetErrorsTest);
-    defineReflectiveTests(GetErrorsTest_Driver);
   });
 }
 
 /**
  * Base class for testing the "analysis.getErrors" request.
  */
-class AnalysisDomainGetErrorsTest
-    extends AbstractAnalysisServerIntegrationTest {
-  AnalysisDomainGetErrorsTest();
+@reflectiveTest
+class GetErrorsTest extends AbstractAnalysisServerIntegrationTest {
+  GetErrorsTest();
 
   test_getErrors() {
     String pathname = sourcePath('test.dart');
     String text = r'''
 main() {
   var x // parse error: missing ';'
 }''';
     writeFile(pathname, text);
     standardAnalysisSetup();
     Future finishTest() {
       return sendAnalysisGetErrors(pathname).then((result) {
         expect(result.errors, equals(currentAnalysisErrors[pathname]));
       });
     }
 
     return analysisFinished.then((_) => finishTest());
   }
 }
-
-@reflectiveTest
-class GetErrorsTest extends AnalysisDomainGetErrorsTest {}
-
-@reflectiveTest
-class GetErrorsTest_Driver extends AnalysisDomainGetErrorsTest {
-  @override
-  bool get enableNewAnalysisDriver => true;
-}