{"ast_node_type":"variable","tokens":[{"end":63,"kind":"keyword","start":0,"text":"let"}]}
                    let qualifs = tcx.mir_const_qualif(def_id);
                if should_encode_const(tcx.def_kind(def_id)) {
                    record!(self.tables.mir_const_qualif[def_id.to_def_id()] <- qualifs);