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

[Kagamin]

On Tuesday, 13 February 2018 at 04:44:27 UTC, timotheecour wrote:
> Try to comment that with `/* */`:
> ```
> void drawCircle(int angle /* in degrees */);
> ```

When you want to disable whole declaration, version(none) works 
just fine.