Why doesn't std.variant.visit automatically call the provided delegates?

[Adam D. Ruppe via Digitalmars-d]

On Saturday, 5 November 2016 at 20:15:14 UTC, Kapps wrote:
> That feels like it should be a compiler warning.

I'm now of the opinion that the {} delegates should be deprecated 
(instead use () {} delegates)... this comes up a lot and there's 
a few other places too where it is a pain... and it isn't that 
worth keeping imo.