While memory segments support spliterator, the support is unnecessarily user unfriendly, for two reasons:

* the spliterator takes a layout argument that is expected to be a sequence layout matching the entire segment; in most cases, passing an element layout (e.g. viewing the segment as a flat array) is more convenient instead.

* there is no convenience method to create a stream out of a segment - users have to resort to StreamSupport.stream(...) to do so.