Add Exception to the class name for recently added exception classes

runtime/bin/http_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 _HttpHeaders implements HttpHeaders {
   _HttpHeaders() : _headers = new Map<String, List<String>>();
 
   List<String> operator[](String name) {
     name = name.toLowerCase();
     return _headers[name];
@@ skipping 1175 matching lines @@
         if (location == null || location.length > 1) {
            throw new RedirectException("Invalid redirect",
                                        _connection._redirects);
         }
         // Check for redirect loop
         if (_connection._redirects != null) {
           Uri redirectUrl = new Uri.fromString(location[0]);
           for (int i = 0; i < _connection._redirects.length; i++) {
             if (_connection._redirects[i].location.toString() ==
                 redirectUrl.toString()) {
-              throw new RedirectLoop(_connection._redirects);
+              throw new RedirectLoopException(_connection._redirects);
             }
           }
         }
         // Drain body and redirect.
         inputStream.onData = inputStream.read;
         inputStream.onClosed = _connection.redirect;
       } else {
-        throw new RedirectLimitExceeded(_connection._redirects);
+        throw new RedirectLimitExceededException(_connection._redirects);
       }
     } else if (_connection._onResponse != null) {
       _connection._onResponse(this);
     }
   }
 
   void _onDataReceived(List<int> data) {
     _buffer.add(data);
     if (_inputStream != null) _inputStream._dataReceived();
   }
@@ skipping 416 matching lines @@
 
 
 class _RedirectInfo implements RedirectInfo {
   const _RedirectInfo(int this.statusCode,
                       String this.method,
                       Uri this.location);
   final int statusCode;
   final String method;
   final Uri location;
 }