{"ast_node_type":"variable","tokens":[{"end":54,"kind":"keyword","start":0,"text":"if"}]}
        if let Rvalue::Repeat(operand, count) = rvalue
    fn simplify_repeat_once(&self, rvalue: &mut Rvalue<'tcx>) {
            && let Some(1) = count.try_to_target_usize(self.tcx)