[Issue 18349] std/math.d(543,33): Deprecation: integral promotion not done for -x

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18349

--- Comment #3 from Basile B. <b2.temp at gmx.com> ---
The constraint is already commented...

https://github.com/dlang/phobos/pull/6014
https://github.com/dlang/phobos/pull/6014/files#diff-8b9f1870415268a4c40b628d596dc405R549

Maybe the fix can be done anyway

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