func (v *List) FreeFull(fn func(item interface{})) {
	v.Foreach(fn)
	v.Free()
}
func (v *List) FreeFull(fn func(item interface{})) {
	v.Foreach(fn)
	v.Free()
}
// FreeFull acts the same as g_list_free_full().
// Calling list.FreeFull(fn) is equivalent to calling list.Foreach(fn) and
// list.Free() sequentially.