[Issue 18539] [Reg 2.078.1] approxEqual cannot deduces type if Nullable used

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18539

--- Comment #2 from drug007 <drug2004 at bk.ru> ---
I comfirm it's fixed in dmd-beta.
https://github.com/dlang/phobos/pull/6236

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