{"ast_node_type":"enum","tokens":[{"end":86,"kind":"keyword","start":0,"text":"let"}]}
        let ordering_enum = self.require_lang_item(hir::LangItem::OrderingEnum, span);
    pub fn ty_ordering_enum(self, span: Span) -> Ty<'tcx> {
        self.type_of(ordering_enum).no_bound_vars().unwrap()