Inconsistency between `AllMembers` and `hasMember`

[drug]

On 18.11.2018 5:37, Stanislav Blinov wrote:
> 
> It's only "hidden" in that there's no symbol to access it. But you can 
> still access it via .tupleof, and it still of course affects the ABI 
> (i.e. S.sizeof is always at least pointer size when S is nested).
> If you want to iterate fields, .tupleof is a better way to do it. As for 
> that hidden pointer, you can just test with __traits(isNested, S) 
> whether that's present, and just don't look at the last field.

But what is the reason for someone to use this pointer even via 
.tupleof? I still think AllMember shouldn't return it at all. Of course 
I can filter it using isNested or just comparing with "this" leteral 
during iteration. But it complicates things I believe.

P.S. using isNested seems to be more portable solution than comparing 
with leteral but is this pointer always the last element in AllMember 
trait result?