func (v *Value) AddArg6(w1, w2, w3, w4, w5, w6 *Value) {
	v.Args = append(v.Args, w1, w2, w3, w4, w5, w6)
	w1.Uses++
	w2.Uses++
	w3.Uses++
	w4.Uses++
	w5.Uses++
	w6.Uses++
}

func (v *Value) AddArgs(a ...*Value) {
	if v.Args == nil {
		v.resetArgs() // use argstorage
	}
	v.Args = append(v.Args, a...)
	for _, x := range a {
		x.Uses++
	}
}
func (v *Value) SetArg(i int, w *Value) {