overloading by constness

[downs]

This is the one major thing that stops me from switching to D 2.0, and so I have to ask:
Are there any plans to allow us to overload D functions by the constness of their parameters? In a 
related question: Will constness ever be part of the name mangling?
I realize D 2.0 is still alpha (although one wouldn't suspect that from the way the D homepage 
looks), so I don't expect it immediately, but some estimate would be nice. I have some code that 
depends on this.
  --downs