[Issue 16577] deduplicate deprecation messages

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16577

greenify <greeenify at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |greeenify at gmail.com
            Summary|deprecated message problem  |deduplicate deprecation
                   |with overloaded functions   |messages
                   |and selective import        |

--- Comment #1 from greenify <greeenify at gmail.com> ---
Trying to deprecate std.typetuple led to an armada of deprecation messages:

https://ci.dawg.eu/job/projects/458/REPO=rejectedsoftware%2Fvibe.d/consoleFull

So I guess there should be some mechanism in dmd to deduplicate deprecation
messages (thus I changed the title accordingly)

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