{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"debug_assert_matches!(self.def_kind(def_id),"}]}
        debug_assert_matches!(self.def_kind(def_id), DefKind::Fn | DefKind::AssocFn);
    fn fn_is_const(self, def_id: DefId) -> bool {
        self.is_conditionally_const(def_id)