Help - can't ADD constness

[Janice Caron]

This won't compile under D2.004

 class A
 {
     int x;
 }

 void main()
 {
     const a = new A(); /* Error */
 }

The error is
Error: non-constant expression cast(const A)new A

Now what's going on here? Are we not allowed to turn mutables into consts now?