proposal: heredoc comments to allow `+/` in comments, eg from urls or documented unittests

[Walter Bright]

On 2/12/2018 12:23 PM, Jacob Carlborg wrote:
> Here you go [1]. It's a bit outdated now, from 2013, but it worked back then.

The last dstep commit was November 2017.

> 
> [1] 
> https://github.com/jacob-carlborg/dmd/commit/2837d340c065cc2bf3f0a83cb96c4d9f22fb3a30 

I take it dstep spawns the clang compiler?