do not free objects in pic->irep by hands
do not free objects in pic->irep by hands

ktakashi/picrin,picrin-scheme/picrin,picrin-scheme/picrin,omasanori/picrin,ktakashi/picrin,dcurrie/picrin,koba-e964/picrin,koba-e964/picrin,leavesbnw/picrin,omasanori/picrin,koba-e964/picrin,ktakashi/picrin,leavesbnw/picrin,dcurrie/picrin,leavesbnw/picrin