Mixins: to!string cannot be interpreted at compile time

[bearophile]

David Nadlinger:

> Maybe I missed something as well, but to me it seems to be a CTFE bug, 
> because if you split the offending line into two parts, it
> 
> result ~= to!string(i);
> result ~= ", ";
> 
> Please consider filing this to Bugzilla.

Wow. I was wrong, and you are right. It's not a problem of to!() then.

Bye,
bearophile