{"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"if"}]}
            if rustc_feature::is_stable_diagnostic_attribute(attr, self.features()) {
            // it's a crate local item, we need to check feature flags
                self.get_attrs_by_path(did, &[sym::diagnostic, sym::do_not_recommend]).next()