BINOP (0x191da14) sassign
        BINOP (0x191da38) add [3]
            UNOP (0x191da7c) null [15]
                PADOP (0x191da9c) gvsv  GV (0x1824348) *a
            SVOP (0x191da5c) const [4] IV (0x22509c) 1
        UNOP (0x191dabc) null [15]
            PADOP (0x191dadc) gvsv  GV (0x1824348) *a