Get some tests running using the analysis driver

pkg/analysis_server/lib/src/analysis_server.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 analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:core';
 import 'dart:io' as io;
 import 'dart:math' show max;
 
 import 'package:analysis_server/plugin/protocol/protocol.dart'
     hide AnalysisOptions, Element;
 import 'package:analysis_server/src/analysis_logger.dart';
 import 'package:analysis_server/src/channel/channel.dart';
 import 'package:analysis_server/src/computer/new_notifications.dart';
 import 'package:analysis_server/src/context_manager.dart';
 import 'package:analysis_server/src/operation/operation.dart';
 import 'package:analysis_server/src/operation/operation_analysis.dart';
 import 'package:analysis_server/src/operation/operation_queue.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
 import 'package:analysis_server/src/services/correction/namespace.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analysis_server/src/services/search/search_engine_internal.dart';
 import 'package:analysis_server/src/services/search/search_engine_internal2.dart';
 import 'package:analysis_server/src/single_context_manager.dart';
+import 'package:analysis_server/src/utilities/null_string_sink.dart';
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_resolution_map.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/exception/exception.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/physical_file_system.dart';
 import 'package:analyzer/instrumentation/instrumentation.dart';
 import 'package:analyzer/plugin/resolver_provider.dart';
 import 'package:analyzer/source/pub_package_map_provider.dart';
 import 'package:analyzer/src/context/builder.dart';
@@ skipping 325 matching lines @@
         options.enableIncrementalResolutionApi;
     defaultContextOptions.incrementalValidation =
         options.enableIncrementalResolutionValidation;
     defaultContextOptions.finerGrainedInvalidation =
         options.finerGrainedInvalidation;
     defaultContextOptions.generateImplicitErrors = false;
     operationQueue = new ServerOperationQueue();
 
     {
       String name = options.newAnalysisDriverLog;
-      StringSink sink = new _NullStringSink();
+      StringSink sink = new NullStringSink();
       if (name != null) {
         if (name == 'stdout') {
           sink = io.stdout;
         } else if (name.startsWith('file:')) {
           String path = name.substring('file:'.length);
           sink = new io.File(path).openWrite(mode: io.FileMode.APPEND);
         }
       }
       _analysisPerformanceLogger = new nd.PerformanceLog(sink);
     }
@@ skipping 1721 matching lines @@
   /**
    * The [PerformanceTag] for time spent in server request handlers.
    */
   static PerformanceTag serverRequests = new PerformanceTag('serverRequests');
 
   /**
    * The [PerformanceTag] for time spent in split store microtasks.
    */
   static PerformanceTag splitStore = new PerformanceTag('splitStore');
 }
-
-class _NullStringSink implements StringSink {
-  void write(Object obj) {}
-  void writeAll(Iterable objects, [String separator = ""]) {}
-  void writeCharCode(int charCode) {}
-  void writeln([Object obj = ""]) {}
-}