if !is_type_diagnostic_item(cx, type_of_receiver, sym!(option_type))
&& !is_type_diagnostic_item(cx, type_of_receiver, sym!(result_type))
{
if !is_type_diagnostic_item(cx, type_of_receiver, sym!(option_type))
&& !is_type_diagnostic_item(cx, type_of_receiver, sym!(result_type))
{