multiple `alias this` suggestion

[Seb via Digitalmars-d]

On Thursday, 4 May 2017 at 14:09:49 UTC, Carl Sturtivant wrote:
>
> Reasonable. I may eventually resort to this possibility, but 
> right now I am trying to force out the consequences of avoiding 
> this extra complexity. (And syntax, yes, noted.)
>
> Not finished posting to this thread yet.

As no one pointed it out before, FYI there has been a previous 
DIP (https://wiki.dlang.org/DIP66) on which the old dmd PR was 
based on.