Change getters syntax in dart:io library.

runtime/bin/socket_stream_impl.dart

 // Copyright (c) 2012, 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.
 
 class _SocketInputStream implements SocketInputStream {
   _SocketInputStream(Socket socket) : _socket = socket {
     if (_socket._id == -1) _closed = true;
     _socket.onClosed = _onClosed;
   }
 
@@ skipping 37 matching lines @@
   void pipe(OutputStream output, [bool close = true]) {
     _pipe(this, output, close: close);
   }
 
   void close() {
     if (!_closed) {
       _socket.close();
     }
   }
 
-  bool get closed() => _closed;
+  bool get closed => _closed;
 
   void set onData(void callback()) {
     _socket._onData = callback;
   }
 
   void set onClosed(void callback()) {
     _clientCloseHandler = callback;
     _socket._onClosed = _onClosed;
   }
 
@@ skipping 60 matching lines @@
     }
   }
 
   void destroy() {
     _socket.onWrite = null;
     _pendingWrites.clear();
     _socket.close();
     _closed = true;
   }
 
-  bool get closed() => _closed;
+  bool get closed => _closed;
 
   void set onNoPendingWrites(void callback()) {
     _onNoPendingWrites = callback;
     if (_onNoPendingWrites != null) {
       _socket._onWrite = _onWrite;
     }
   }
 
   void set onClosed(void callback()) {
     _onClosed = callback;
@@ skipping 64 matching lines @@
     }
   }
 
   Socket _socket;
   _BufferList _pendingWrites;
   Function _onNoPendingWrites;
   Function _onClosed;
   bool _closing = false;
   bool _closed = false;
 }