Fix malformed type in socket_patch.dart

runtime/bin/socket_patch.dart

 // Copyright (c) 2013, 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.
 
 patch class RawServerSocket {
   /* patch */ static Future<RawServerSocket> bind(address,
                                                   int port,
                                                   {int backlog: 0,
                                                    bool v6Only: false}) {
     return _RawServerSocket.bind(address, port, backlog, v6Only);
@@ skipping 1452 matching lines @@
                                              bool cancelOnError}) {
     return _controller.stream.listen(
         onData,
         onError: onError,
         onDone: onDone,
         cancelOnError: cancelOnError);
   }
 
   Future close() => _socket.close().then((_) => this);
 
-  int send(List<data> buffer, InternetAddress address, int port) =>
+  int send(List<int> buffer, InternetAddress address, int port) =>
       _socket.send(buffer, 0, buffer.length, address, port);
 
   Datagram receive() {
     return _socket.receive();
   }
 
   void joinMulticast(InternetAddress group, [NetworkInterface interface]) {
     _socket.joinMulticast(group, interface);
   }
 
@@ skipping 71 matching lines @@
                        String address,
                        List<int> sockaddr_storage,
                        int port) {
   var addressType =
       ipV6 ? InternetAddressType.IP_V6 : InternetAddressType.IP_V4;
   return new Datagram(
       data,
       new _InternetAddress(addressType, address, null, sockaddr_storage),
       port);
 }