{"ast_node_type":"variable","tokens":[{"end":26,"kind":"keyword","start":0,"text":"let"}]}
        let pointee_type =
    ) -> InterpResult<'tcx, MPlaceTy<'tcx, M::Provenance>> {
            val.layout.ty.builtin_deref(true).expect("`ref_to_mplace` called on non-ptr type");