{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"ty::Ref(_,"}]}
                        ty::Ref(_, ty, _) if ty.is_str() => {}
                    match args[0].node.ty(&self.ccx.body.local_decls, tcx).kind() {
                        _ => self.check_op(ops::PanicNonStr),