Adapt streams for additional stackTrace argument.

sdk/lib/_internal/pub/lib/src/barback/server.dart

 // Copyright (c) 2013, 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.
 
 library pub.barback.server;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:barback/barback.dart';
@@ skipping 38 matching lines @@
   static Future<BarbackServer> bind(String host, int port, Barback barback,
       String rootPackage) {
     return HttpServer.bind(host, port)
         .then((server) => new BarbackServer._(server, barback, rootPackage));
   }
 
   BarbackServer._(HttpServer server, this.barback, this._rootPackage)
       : _server = server,
         port = server.port,
         address = server.address {
-    _server.listen(_handleRequest, onError: (error) {
-      _resultsController.addError(error);
+    _server.listen(_handleRequest, onError: (error, stackTrace) {
+      _resultsController.addError(error, stackTrace);
       close();
     });
   }
 
   /// Closes this server.
   Future close() {
     _server.close();
     _resultsController.close();
   }
 
@@ skipping 125 matching lines @@
   bool get isSuccess => error == null;
 
   /// Whether the request was served unsuccessfully.
   bool get isFailure => !isSuccess;
 
   BarbackServerResult._success(this.url, this.id)
       : error = null;
 
   BarbackServerResult._failure(this.url, this.id, this.error);
 }