{"ast_node_type":"other","tokens":[{"end":97,"kind":"keyword","start":0,"text":".map_or_else(Vec::new,"}]}
            .map_or_else(Vec::new, |def_id| get_parameter_names(cx, cx.tcx.generics_of(def_id)));
            .parent
        names.extend(generics.own_params.iter().map(|param| param.name));