Automatic type expansion of functions to delegates?

[Adam D. Ruppe]

On Sunday, 9 December 2018 at 02:02:51 UTC, Andrew Pennebaker 
wrote:
> Hey, do you think it would be possible for D to automatically 
> expand more types, such as promoting functions to delegates? 
> This would save us from having to write some boilerplate code.

It is pretty simple to just call toDelegate to do that 
conversion. D is unlikely to get more automatic conversions going 
forward, especially of built-ins.

http://dpldocs.info/experimental-docs/std.functional.toDelegate.html