FREELIST_REF      486 lib/lua/lauxlib.c   lua_rawgeti(L, t, FREELIST_REF);  /* get first free element */
FREELIST_REF      491 lib/lua/lauxlib.c     lua_rawseti(L, t, FREELIST_REF);  /* (t[FREELIST_REF] = t[ref]) */
FREELIST_REF      505 lib/lua/lauxlib.c     lua_rawgeti(L, t, FREELIST_REF);
FREELIST_REF      508 lib/lua/lauxlib.c     lua_rawseti(L, t, FREELIST_REF);  /* t[FREELIST_REF] = ref */