Change getters syntax in dart:io library.

runtime/bin/stream_util.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 _BaseDataInputStream {
   abstract int available();
 
   List<int> read([int len]) {
     if (_closeCallbackCalled || _scheduledCloseCallback != null) return null;
     int bytesToRead = available();
@@ skipping 23 matching lines @@
   void pipe(OutputStream output, [bool close = true]) {
     _pipe(this, output, close: close);
   }
 
   void close() {
     _cancelScheduledDataCallback();
     _close();
     _checkScheduleCallbacks();
   }
 
-  bool get closed() => _closeCallbackCalled;
+  bool get closed => _closeCallbackCalled;
 
   void set onData(void callback()) {
     _clientDataHandler = callback;
     _checkScheduleCallbacks();
   }
 
   void set onClosed(void callback()) {
     _clientCloseHandler = callback;
     _checkScheduleCallbacks();
   }
@@ skipping 147 matching lines @@
   void _reportError(e) {
     if (_onError != null) {
       _onError(e);
     } else {
       throw e;
     }
   }
 
   Function _onError;
 }