[Issue 14269] Enum is not implicitly converted to base type when using ref

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14269

--- Comment #22 from Jonathan M Davis <issues.dlang at jmdavisProg.com> ---
I think that allowing an implicit conversion to be used with a ref parameter is
a clear violation of the type system. If we want to fix it via deprecation
rather than immediately making it an error like we'd normally do with an
"accepts-invalid" bug on the theory that the code actually works in spite of
violating the type system, then fine. But I don't think that it's at all a good
idea to leave the code as valid long term.

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