Add Exception to the class name for recently added exception classes

runtime/bin/http.dart

Index: runtime/bin/http.dart
diff --git a/runtime/bin/http.dart b/runtime/bin/http.dart
index 2c7ddc4c263e4e8e513e1be5fec1d010836be29d..e18962587584f790611513d17bc7036a4adf402c 100644
--- a/runtime/bin/http.dart
+++ b/runtime/bin/http.dart
@@ -663,13 +663,13 @@ class RedirectException extends HttpException {
 }
 
 
-class RedirectLimitExceeded extends RedirectException {
-  const RedirectLimitExceeded(List<RedirectInfo> redirects)
+class RedirectLimitExceededException extends RedirectException {
+  const RedirectLimitExceededException(List<RedirectInfo> redirects)
       : super("Redirect limit exceeded", redirects);
 }
 
 
-class RedirectLoop extends RedirectException {
-  const RedirectLoop(List<RedirectInfo> redirects)
+class RedirectLoopException extends RedirectException {
+  const RedirectLoopException(List<RedirectInfo> redirects)
       : super("Redirect loop detected", redirects);
 }