luaS_hash
return luaS_hash(buff, p, h);
unsigned int h = luaS_hash(str, l, g->seed);
LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
s->tsv.hash = luaS_hash(getstr(s), s->tsv.len, s->tsv.hash);