lj_snap_grow_map  288 lj_opt_loop.c    lj_snap_grow_map(J, J->cur.nsnapmap*2+(onsnap-2)*J->cur.snap[onsnap-1].nent);
lj_snap_grow_map  128 lj_snap.c        lj_snap_grow_map(J, nsnapmap + nslots + (MSize)J->framedepth+1);