Stop working around issue 7781 in Pub.

utils/pub/command_lish.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.
 
 library command_lish;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:json';
 import 'dart:uri';
@@ skipping 54 matching lines @@
         request.files.add(new http.MultipartFile.fromBytes(
             'file', packageBytes, filename: 'package.tar.gz'));
         return client.send(request);
       }).then(http.Response.fromStream).then((response) {
         var location = response.headers['location'];
         if (location == null) throw new PubHttpException(response);
         return location;
       }).then((location) => client.get(location))
         .then(handleJsonSuccess);
     }).catchError((asyncError) {
-      var e = getRealError(asyncError);
-      if (e is! PubHttpException) throw asyncError;
-      var url = e.response.request.url;
+      if (asyncError.error is! PubHttpException) throw asyncError;
+      var url = asyncError.error.response.request.url;
       if (url.toString() == cloudStorageUrl.toString()) {
         // TODO(nweiz): the response may have XML-formatted information about
         // the error. Try to parse that out once we have an easily-accessible
         // XML parser.
         throw 'Failed to upload the package.';
       } else if (url.origin == server.origin) {
-        handleJsonError(e.response);
+        handleJsonError(asyncError.error.response);
       }
     });
   }
 
   Future onRun() {
     var files;
     return _filesToPublish.then((f) {
       files = f;
       log.fine('Archiving and publishing ${entrypoint.root}.');
       return createTarGz(files, baseDir: entrypoint.root.dir);
@@ skipping 83 matching lines @@
         var s = warnings.length == 1 ? '' : 's';
         message = "Package has ${warnings.length} warning$s. Upload anyway";
       }
 
       return confirm(message).then((confirmed) {
         if (!confirmed) throw "Package upload canceled.";
       });
     });
   }
 }