ImplicitConversionTargets opposite

[via Digitalmars-d-learn]

On Thursday, 21 May 2015 at 21:49:55 UTC, Freddy wrote:
> std.traits has ImplicitConversionTargets.
> Is there any template that returns the types that can implicty 
> convert to T?

I doubt that, because it's an open set (alias this, inheritance). 
However, it should be possible to iterate over all types in a 
given module, and select only those that are implicitly 
convertible to your type.