check instance of nested variadic template

[Basile B. via Digitalmars-d-learn]

On Saturday, 5 November 2016 at 13:43:34 UTC, Lodovico Giaretta 
wrote:
> On Saturday, 5 November 2016 at 13:34:51 UTC, Gianni Pisetta 
> wrote:
>> When i have time i will test it with ldc and see if the result 
>> is the same, then it will probably be a front-end bug and i 
>> will report it as an issue.
>
> I think it has already been reported.
>
> https://issues.dlang.org/show_bug.cgi?id=13372

Yes. Though the report is more generalized now. It applies to any 
eponymous type template.