{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"hir::TyKind::Ref(region,"}]}
            hir::TyKind::Ref(region, mt) => {
            hir::TyKind::Ptr(mt) => Ty::new_ptr(tcx, self.lower_ty(mt.ty), mt.mutbl),
                let r = self.lower_lifetime(region, RegionInferReason::Reference);