Fix for 11812. Reordered the clean up so that deletion of the "real" object

happens after NS_RELEASE of the proxy object.  This is a test program.

reviewed by gagan.

xpcom/proxy/tests/proxytests.cpp

@@ -376,8 +376,9 @@ static void PR_CALLBACK EventLoop( void *arg )
     proxyObject->Test(1, 2, &a);
     proxyObject->Test2();
 
-    delete foo;
+    
     NS_RELEASE(proxyObject);
+    delete foo;
 
     printf("End of Verification calling Proxy on eventQ thread.\n");