[Issue 6895] std.traits.isCovariantWith doesn't work for function, function pointer and delegate

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=6895

--- Comment #1 from Alexandru Razvan Caciulescu <alexandru.razva...@gmail.com> 
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https://github.com/dlang/phobos/pull/5800

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