don't intern symbols newly generated by new_uniq_sym
don't intern symbols newly generated by new_uniq_sym

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