luaV_lessthan     306 lib/lua/lapi.c        : luaV_lessthan(L, o1, o2);
luaV_lessthan     573 lib/lua/lvm.c            if (luaV_lessthan(L, RKB(i), RKC(i)) == GETARG_A(i))
luaV_lessthan      25 lib/lua/lvm.h  LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);