Fixes fake even dispatch in UiRendererEventsTest for IE8 and less

Review at http://gwt-code-reviews.appspot.com/1550804

Review by: rjrjr@google.com

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10648 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/user/test/com/google/gwt/uibinder/test/client/UiRendererEventsTest.java b/user/test/com/google/gwt/uibinder/test/client/UiRendererEventsTest.java
index f0d0b50..8f6c53e 100644
--- a/user/test/com/google/gwt/uibinder/test/client/UiRendererEventsTest.java
+++ b/user/test/com/google/gwt/uibinder/test/client/UiRendererEventsTest.java
@@ -319,6 +319,9 @@
     var event = {};
 
     event.target = target;
+    // For IE < 9
+    event.srcElement = target;
+
     event.type = type;
     return event;
   }-*/;