Fix test breakage 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 1098 matching lines @@
       'name': name,
       'user_name': name,
       'kind': _JSONKind(),
     };
     if (ref) {
       return r;
     }
     var protocol = isTcp ? "TCP" : isUdp ? "UDP" : null;
     var localAddress;
     var localPort;
-    var remoteAddress;
-    var remotePort;
+    var rAddress;
+    var rPort;
     try {
       localAddress = address.address;
     } catch (e) { }
     try {
       localPort = port;
     } catch (e) { }
     try {
-      remoteAddress = this.remoteAddress.address;
+      rAddress = this.remoteAddress.address;
     } catch (e) { }
     try {
-      remotePort = remotePort;
+      rPort = remotePort;
     } catch (e) { }
     r['localAddress'] = localAddress;
     r['localPort'] = localPort;
-    r['remoteAddress'] = remoteAddress;
-    r['remotePort'] = remotePort;
+    r['remoteAddress'] = rAddress;
+    r['remotePort'] = rPort;
     r['protocol'] = protocol;
     r['readClosed'] = isClosedRead;
     r['writeClosed'] = isClosedWrite;
     r['closing'] = isClosing;
     r['listening'] = isListening;
     r['fd'] = nativeGetSocketId();
     if (owner != null) {
       r['owner'] = owner._toJSON(true);
     }
     return r;
@@ skipping 825 matching lines @@
                        String address,
                        List<int> in_addr,
                        int port) {
   return new Datagram(
       data,
       new _InternetAddress(address, null, in_addr),
       port);
 }
 
 String _socketsStats() => _SocketsObservatory.toJSON();