func (v Value) Elem() Value {
	k := v.kind()
	switch k {
	case Interface:
		var eface any
		if v.typ().NumMethod() == 0 {
			eface = *(*any)(v.ptr)
		} else {
			eface = (any)(*(*interface {
				M()
			})(v.ptr))
		}
		x := unpackEface(eface)
		if x.flag != 0 {
			x.flag |= v.flag.ro()
		}
		return x
	case Pointer:
		ptr := v.ptr

			if _, ok := rv.Interface().(Iface); ok != table.impl {
				if table.impl {
					t.Errorf("test-%d-%d: type=%v fails to implement Iface.\n", i, j, table.typ)
				} else {
					t.Errorf("test-%d-%d: type=%v should NOT implement Iface\n", i, j, table.typ)
				}
				continue
			}

			if !table.impl {
				continue
			}

			v := rv.Interface().(Iface).Get()
			if v != want {