[Issue 23970] [REG2.097.0] Deprecation not emitted when selectively importing deprecated function

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23970

--- Comment #2 from Vladimir Panteleev <dlang-bugzilla at thecybershadow.net> ---
That sounds fine to me. I just want to note that maybe deprecation should be a
property that is tracked for overload sets; then, maintaining that property on
the overload set, and checking if all of the functions in the overload set are
deprecated, become a O(1) operation.

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