[Issue 8204] Can't instantiate auto ref template explicitly

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=8204

--- Comment #9 from Basile-z <b2.temp at gmx.com> ---
why not just instantiate all possible permutations of by value / by ref in an
overload set ?

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