An (old/new?) pattern to utilize phobos better with @nogc

[Dukc]

On Sunday, 17 June 2018 at 20:17:36 UTC, Dukc wrote:
>
> Yes, I agree. And each too, of course.

Thought again and not so sure anymore: I just realized that if we 
are to do that, it should apply the same changes to tee, find, 
filter etc. Probably too complicated to be worth it.

For @nogc, there's also always hope that we will be able to mark 
delegates scope, and with -dip1000, use local variables directly 
again.