Fix dart:io File.openInputStream input stream to cancel outstanding onData events when EOF reached.

runtime/bin/file_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 _FileInputStream extends _BaseDataInputStream implements InputStream {
   _FileInputStream(String name)
       : _data = [],
         _position = 0,
         _filePosition = 0 {
     var file = new File(name);
@@ skipping 20 matching lines @@
       return _fillBuffer();
     });
     chained.handleException((e) {
       _reportError(e);
       return true;
     });
     chained.then((ignored) => _checkScheduleCallbacks());
   }
 
   void _closeFile() {
+    if (available() == 0) _cancelScheduledDataCallback();
     if (!_openedFile.closed) {
       _openedFile.close().then((ignore) {
         _streamMarkedClosed = true;
         _checkScheduleCallbacks();
       });
     }
   }
 
   Future<int> _fillBuffer() {
     Expect.equals(_position, _data.length);
@@ skipping 1080 matching lines @@
           new FileIOException("File closed '$_name'"));
     });
     return completer.future;
   }
 
   final String _name;
   int _id;
 
   SendPort _fileService;
 }