Split "_Driver" tests to separate test files.

pkg/analysis_server/test/integration/analysis/error_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 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
 import '../integration_tests.dart';
 
 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(AnalysisErrorIntegrationTest);
-    defineReflectiveTests(AnalysisErrorIntegrationTest_Driver);
   });
 }
 
 class AbstractAnalysisErrorIntegrationTest
     extends AbstractAnalysisServerIntegrationTest {
   test_detect_simple_error() {
     String pathname = sourcePath('test.dart');
     writeFile(
         pathname,
         '''
@@ skipping 66 matching lines @@
     await analysisFinished;
     expect(currentAnalysisErrors[pathname], isList);
     List<AnalysisError> errors = currentAnalysisErrors[pathname];
     expect(errors, isEmpty);
   }
 }
 
 @reflectiveTest
 class AnalysisErrorIntegrationTest
     extends AbstractAnalysisErrorIntegrationTest {}
-
-@reflectiveTest
-class AnalysisErrorIntegrationTest_Driver
-    extends AbstractAnalysisErrorIntegrationTest {
-  @override
-  bool get enableNewAnalysisDriver => true;
-
-  @failingTest
-  test_super_mixins_enabled() async {
-    //  Expected: empty
-    //    Actual: [
-    //    AnalysisError:{"severity":"ERROR","type":"COMPILE_TIME_ERROR","location":{"file":"/var/folders/00/0w95r000h01000cxqpysvccm003j4q/T/analysisServerfbuOQb/test.dart","offset":31,"length":1,"startLine":1,"startColumn":32},"message":"The class 'C' can't be used as a mixin because it extends a class other than Object.","correction":"","code":"mixin_inherits_from_not_object","hasFix":false},
-    //    AnalysisError:{"severity":"ERROR","type":"COMPILE_TIME_ERROR","location":{"file":"/var/folders/00/0w95r000h01000cxqpysvccm003j4q/T/analysisServerfbuOQb/test.dart","offset":31,"length":1,"startLine":1,"startColumn":32},"message":"The class 'C' can't be used as a mixin because it references 'super'.","correction":"","code":"mixin_references_super","hasFix":false}
-    //  ]
-    return super.test_super_mixins_enabled();
-  }
-}