Inner function overload bug?

[Philippe Sigaud]

On Wed, Jan 9, 2013 at 1:53 AM, Andrej Mitrovic
<andrej.mitrovich at gmail.com> wrote:
> On 1/9/13, bearophile <bearophileHUGS at lycos.com> wrote:
>> If you define an inner static struct, its static methods can call
>> each other freely.
>
> You can also use a mixin template:
>
> mixin template S()
> {
>     void test(ref int x) { x = test(); }
>     int test() { return 1; }
> }
>
> void main()
> {
>     mixin S;
>
>     int x;
>     test(x);
>     assert(x == 1);
> }

That's weird. Why does that work? Directly pasting the mixin content
in main() does not compile, right?