Fix for 'execution.mapUri' with the new analysis driver.

pkg/analysis_server/test/integration/execution/map_uri_test.dart

 // Copyright (c) 2017, 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/plugin/protocol/protocol.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
@@ skipping 21 matching lines @@
   }
 }
 
 @reflectiveTest
 class MapUriTest extends AbstractMapUriTest {}
 
 @reflectiveTest
 class MapUriTest_Driver extends AbstractMapUriTest {
   @override
   bool get enableNewAnalysisDriver => true;
-
-  @failingTest
-  @override
-  Future test_mapUri() => super.test_mapUri();
 }