[Issue 23626] [REG2.096] Template deduction with auto const ref Args... and delegate

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23626

--- Comment #4 from Iain Buclaw <ibuclaw at gdcproject.org> ---
(In reply to johanengelen from comment #0)
>   void func_2(Dlg)(Dlg dlg) {
>     __trace_maybeDumpTupleToFile(dlg);
>   }
Just a suggestion, should this be `const Dlg` instead?

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