[Issue 16085] wrong visibility warning for overloaded alias symbol

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16085

--- Comment #9 from Martin Nowak <code at dawg.eu> ---
(In reply to Walter Bright from comment #8)
> > The member "reallocate" should effectively hide the private import, yet the
> > deprecation message still appears.
> 
> The private import is hidden. The alias is not.

Don't quite get that comment. Imports are private by default, so are the
selectively imported symbol aliases.

Already figured out what's wrong with the overload implementation in
symbolIsVisible, just need to find time to fix it.

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