Add Exception to the class name for recently added exception classes

tests/standalone/io/http_redirect_test.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.
 //
 
 #import("dart:io");
 #import("dart:uri");
 
 HttpServer setupServer() {
   HttpServer server = new HttpServer();
@@ skipping 83 matching lines @@
   HttpServer server = setupServer();
   HttpClient client = new HttpClient();
 
   HttpClientConnection conn =
       client.getUrl(new Uri.fromString("http://127.0.0.1:${server.port}/1"));
   conn.onResponse = (HttpClientResponse response) {
     response.inputStream.onData = () => Expect.fail("Response not expected");
     response.inputStream.onClosed = () => Expect.fail("Response not expected");
   };
   conn.onError = (e) {
-    Expect.isTrue(e is RedirectLimitExceeded);
+    Expect.isTrue(e is RedirectLimitExceededException);
     Expect.equals(5, e.redirects.length);
     server.close();
     client.shutdown();
   };
 }
 
 void testRedirectLoop() {
   HttpServer server = setupServer();
   HttpClient client = new HttpClient();
 
   int redirectCount = 0;
   HttpClientConnection conn =
       client.getUrl(new Uri.fromString("http://127.0.0.1:${server.port}/A"));
   conn.onResponse = (HttpClientResponse response) {
     response.inputStream.onData = () => Expect.fail("Response not expected");
     response.inputStream.onClosed = () => Expect.fail("Response not expected");
   };
   conn.onError = (e) {
-    Expect.isTrue(e is RedirectLoop);
+    Expect.isTrue(e is RedirectLoopException);
     Expect.equals(2, e.redirects.length);
     server.close();
     client.shutdown();
   };
 }
 
 main() {
   testManualRedirect();
   testAutoRedirect();
   testRedirectLoop();
 }