Report StateError if the DartSDK for an AnalysisDriver does not have summary.

pkg/analysis_server/test/services/search/search_engine2_test.dart

 // Copyright (c) 2016, 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/src/services/search/search_engine.dart';
 import 'package:analysis_server/src/services/search/search_engine_internal2.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 222 matching lines @@
     assertHasElement('B');
     assertHasElement('b');
   }
 
   AnalysisDriver _newDriver() => new AnalysisDriver(
       scheduler,
       logger,
       provider,
       byteStore,
       contentOverlay,
+      'test',
       new SourceFactory(
           [new DartUriResolver(sdk), new ResourceUriResolver(provider)],
           null,
           provider),
       new AnalysisOptionsImpl()..strongMode = true);
 
   String _p(String path) => provider.convertPath(path);
 }