first cut fuzz test for analysis server

pkg/analysis_server/bin/fuzz/byte_stream_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.byte_stream;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:analysis_server/src/channel/channel.dart';
-import 'package:analysis_server/src/protocol.dart';
+import 'channel.dart';
+import 'protocol.dart';
 
 /**
  * Instances of the class [ByteStreamClientChannel] implement a
  * [ClientCommunicationChannel] that uses a stream and a sink (typically,
  * standard input and standard output) to communicate with servers.
  */
 class ByteStreamClientChannel implements ClientCommunicationChannel {
   final Stream input;
   final IOSink output;
 
@@ skipping 105 matching lines @@
     // Parse the string as a JSON descriptor and process the resulting
     // structure as a request.
     Request request = new Request.fromString(data);
     if (request == null) {
       sendResponse(new Response.invalidRequestFormat());
       return;
     }
     onRequest(request);
   }
 }