/**
* @param FormControl $before The control to insert the control in front of
* @param FormControl $control The control to insert
* @return FormControl $control via Fluent interface
*/
public function insert($before, $control)
{
if (!$control instanceof FormControl) {
$args = func_get_args();
$before = array_shift($args);
$control = FormControl::from_args($args);
}
$this->append($control);
$this->move_before($control, $before);
return $control;
}
