proc processPushBackendOption(config: ConfigRef;
                              optionsStack: var seq[(TOptions, TNoteKinds)];
                              options: var TOptions; n: PNode; start: int) {.
    ...raises: [], tags: [], forbids: [].}

template processPopBackendOption(config: ConfigRef; optionsStack: var seq[
    (TOptions, TNoteKinds)]; options: var TOptions)