Handle stdio redirection in standalone VM

runtime/bin/process_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 _ProcessStartStatus {
   int _errorCode;  // Set to OS error code if process start failed.
   String _errorMessage;  // Set to OS error message if process start failed.
 }
 
 
@@ skipping 67 matching lines @@
     _started = true;
 
     // Make sure to activate socket handlers now that the file
     // descriptors have been set.
     _in._activateHandlers();
     _out._activateHandlers();
     _err._activateHandlers();
 
     // Setup an exit handler to handle internal cleanup and possible
     // callback when a process terminates.
+    int exitDataRead = 0;
+    final int EXIT_DATA_SIZE = 8;
+    List<int> exitDataBuffer = new List<int>(EXIT_DATA_SIZE);
     _exitHandler.inputStream.dataHandler = () {
-      final int EXIT_DATA_SIZE = 8;
-      List<int> exitDataBuffer = new List<int>(EXIT_DATA_SIZE);
-      int exitDataRead = 0;
 
       int exitCode(List<int> ints) {
         var code = _intFromBytes(ints, 0);
         var negative = _intFromBytes(ints, 4);
         assert(negative == 0 || negative == 1);
         return (negative == 0) ? code : -code;
       }
 
       void handleExit() {
         if (_exitHandlerCallback !== null) {
@@ skipping 101 matching lines @@
   Socket _err;
   Socket _exitHandler;
   int _pid;
   bool _closed;
   bool _killed;
   bool _started;
   Function _exitHandlerCallback;
   Function _errorHandler;
   Function _startHandler;
 }