Function deferred_exclude_update

crawl-ref/source/exclude.cc:471–478

Catch up exclude updates from set_exclude with defer_updates=true. Warning: For tiles, this assumes all changed exclude centres are still there, so this won't work as is for del_exclude.

//          are still there, so this won't work as is for
//          del_exclude.
void deferred_exclude_update()
{
    _exclude_update();
#ifdef USE_TILE
    for (const auto &entry : curr_excludes)
        _tile_exclude_gmap_update(entry.second.pos);
#endif
}

void clear_excludes()
{