up                128 lib/lua/ldo.c    GCObject *up;
up                130 lib/lua/ldo.c    for (up = L->openupval; up != NULL; up = up->gch.next)
up                131 lib/lua/ldo.c      gco2uv(up)->v = (gco2uv(up)->v - oldstack) + L->stack;