/* Check whether there is already a label with the given 'name'.  */
static void checkrepeated(LexState *ls, TString *name)
/* Check whether there is already a label with the given 'name'.  */
static void checkrepeated(LexState *ls, TString *name)
{
    const char *msg = "label '%s' already defined on line %d";
    msg = luaO_pushfstring(ls->L, msg, getstr(name), lb->line);
    luaK_semerror(ls, msg);
  }
}