Description:
------------
runkit_method_add()
The name of the method to add must be lower

Reproduce code:
---------------
<?php
class Example {
   public function fooBar() {
       echo "foo";
   }
}

runkit_method_add('Example','fooBar3','','echo "bar";');
$object=new Example();
$object->fooBar3();
?> 


Expected result:
----------------
Fatal error: Call to undefined method Example::fooBar3() in /var/www/html/test.php on line 57

Actual result:
--------------
echo "bar"