Adapt streams for additional stackTrace argument.

pkg/mime/lib/src/mime_multipart_transformer.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.
 
 part of mime;
 
 
 /**
  * A Mime Multipart class representing each part parsed by
  * [MimeMultipartTransformer]. The data is streamed in as it become available.
  */
 abstract class MimeMultipart extends Stream<List<int>> {
   Map<String, String> get headers;
 }
 
 class _MimeMultipart extends MimeMultipart {
   final Map<String, String> headers;
   final Stream<List<int>> _stream;
 
   _MimeMultipart(this.headers, this._stream);
 
   StreamSubscription<List<int>> listen(void onData(List<int> data),
                                        {void onDone(),
-                                        void onError(error),
+                                        Function onError,
                                         bool cancelOnError}) {
     return _stream.listen(onData,
                           onDone: onDone,
                           onError: onError,
                           cancelOnError: cancelOnError);
   }
 }
 
 class _Const {
   // Bytes for '()<>@,;:\\"/[]?={} \t'.
@@ skipping 96 matching lines @@
                 _index = 0;
                 _parse();
               },
               onDone: () {
                 if (_state != _DONE) {
                   _controller.addError(
                       new MimeMultipartException("Bad multipart ending"));
                 }
                 _controller.close();
               },
-              onError: (error) {
-                _controller.addError(error);
-              });
+              onError: _controller.addError);
         });
     return _controller.stream;
   }
 
   void _parse() {
     // Number of boundary bytes to artificially place before the supplied data.
     int boundaryPrefix = 0;
     // Position where content starts. Will be null if no known content
     // start exists. Will be negative of the content starts in the
     // boundary prefix. Will be zero or position if the content starts
@@ skipping 257 matching lines @@
     }
   }
 }
 
 
 class MimeMultipartException implements Exception {
   const MimeMultipartException([String this.message = ""]);
   String toString() => "MimeMultipartException: $message";
   final String message;
 }