const(Object)ref is here!

[Walter Bright]

Michel Fortin wrote:
> After a recent discussion on this list about tail-const class 
> references, it became rather clear that someone interested would have to 
> implement the thing if we were to have it. So I did it. See enhancement 
> request 5325 for an explanation and a patch.
> <http://d.puremagic.com/issues/show_bug.cgi?id=5325>

I think it's great that you're trying this out. I failed at getting tail const 
to work. I don't think it can work, but I might be wrong.