{"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"//"}]}
        // FIXME consider asking the input slice to be sorted to avoid
    pub fn mk_local_def_ids(self, def_ids: &[LocalDefId]) -> &'tcx List<LocalDefId> {
        // re-interning permutations, in which case that would be asserted