Implicit conversion to base interface doesn't work inside initialization of AA of objects

[bearophile via Digitalmars-d]

Uranuz:

> OK. Thanks. Using casts everywhere for such case us quite 
> annoying. I've tested it for plain array it doesn't work too. 
> However issue is marked as solved for it.

It's not exactly the same issue. Issue 3543 seems more fitting. 
In D interfaces and classes are not the same thing.

Bye,
bearophile