{"ast_node_type":"import","tokens":[{"end":92,"kind":"keyword","start":0,"text":"//"}]}
            // We cannot use `builtin_deref` here since we need to reject `Box<T, MyAlloc>`.
        let pointee_ty = |ty: Ty<'tcx>| -> InterpResult<'tcx, Option<Ty<'tcx>>> {
            interp_ok(Some(match ty.kind() {