haveAddr := false

	// If v is a named type and is addressable,
	// start with its address, so that if the type has pointer methods,
	// we find them.
	if v.Kind() != reflect.Pointer && v.Type().Name() != "" && v.CanAddr() {
		haveAddr = true
		v = v.Addr()
	}
	for {
		// Load value from interface, but only if the result will be
		// usefully addressable.
		if v.Kind() == reflect.Interface && !v.IsNil() {
			e := v.Elem()

			e0[j] = ValueOf(e)
		}
		// Convert extra from []int to *SliceValue.
		e1 := ValueOf(test.extra)

		// Test Append.
		a0 := ValueOf(&test.orig).Elem()
		have0 := Append(a0, e0...)
		if have0.CanAddr() {
			t.Errorf("Append #%d: have slice should not be addressable", i)
		}
		if !DeepEqual(have0.Interface(), want) {
			t.Errorf("Append #%d: have %v, want %v (%p %p)", i, have0, want, test.orig, have0.Interface())
		}