{"ast_node_type":"variable","tokens":[{"end":75,"kind":"keyword","start":0,"text":"if"}]}
        if let Rvalue::Ref(_, _, place) | Rvalue::RawPtr(_, place) = rvalue
    fn simplify_ref_deref(&self, rvalue: &mut Rvalue<'tcx>) {
            && let Some((base, ProjectionElem::Deref)) = place.as_ref().last_projection()