first cut fuzz test for analysis server

pkg/analysis_server/bin/fuzz/channel.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 channel;
 
 import 'dart:async';
 import 'dart:convert';
 
-import 'package:analysis_server/src/protocol.dart';
+import 'protocol.dart';
 
 /**
  * The abstract class [ClientCommunicationChannel] defines the behavior of
  * objects that allow a client to send [Request]s to an [AnalysisServer] and to
  * receive both [Response]s and [Notification]s.
  */
 abstract class ClientCommunicationChannel {
   /**
    * The stream of notifications from the server.
    */
@@ skipping 121 matching lines @@
       }
     }
   }
 
   @override
   void close() {
     closed = true;
     sink.close();
   }
 }