Properly handle errors from the OAuth2 token endpoint 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 74 matching lines @@
     }).catchError((asyncError) {
       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(asyncError.error.response);
+      } else {
+        throw asyncError;
       }
     });
   }
 
   Future onRun() {
     if (force && dryRun) {
       log.error('Cannot use both --force and --dry-run.');
       this.printUsage();
       exit(exit_codes.USAGE);
     }
@@ skipping 92 matching lines @@
       return confirm(message).then((confirmed) {
         if (!confirmed) {
           log.error("Package upload canceled.");
           return false;
         }
         return true;
       });
     });
   }
 }