I think this might have been reported:

http://d.puremagic.com/issues/show_bug.cgi?id=3474

On 12/12/10, spir <denis.spir@gmail.com> wrote:
> Hello,
>
> Test case:
>
> struct S {
>     int[] ints;
>     int opDollar () {return this.ints.length;}
>     int opIndex (int i) {return this.ints[i];}
>     int[] opSlice (int i, int j) {return this.ints[i..j];}
> }
>
> unittest {
>     S s = S([3,2,1]);
>     // _link_ error on each line:
>     // Error: undefined identifier __dollar
>     writeln(s[$-1]);
>     writeln(s[0..$]);
>     writeln(s[1..$-1]);
> }
>
> Thank you,
> Denis
> -- -- -- -- -- -- --
> vit esse estrany ☣
>
> spir.wikidot.com
>
>