{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"(ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)),"}]}
                (ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)), _)
            ) {
                    if self.tcx.is_lang_item(predicate.trait_ref.def_id, LangItem::Index) =>