[Issue 23815] closure allocated even if the escape is only used to access static members

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23815

--- Comment #2 from Basile-z <b2.temp at gmx.com> ---
> No problem, the code compiles for me:

It's not a bug report, it's about the fact that the front-end add the code to
allocate a closure that's useless. Then it is eventually optimized away but in
first place it should not even be there, even without optimz.

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