opAssign and references

[Trass3r]

> I am using DMD 2.057 on Ubuntu 64bit. Are you sure that it does not  
> work? Can anyone reproduce the error?
>
> import std.variant;
> struct Foo {
>      Variant a;
>      ref Variant refA(){
>          return a;
>      }
> }
> void main(){
>      Foo f1;
>      f1.refA() = 24;
> }

Compiles fine on Ubuntu x64 with git dmd and -m(32|64)