[Issue 20399] opIn deprecation warning should point to where opIn is defined, not where it is used.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20399

RazvanN <razvan.nitu1305 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |razvan.nitu1305 at gmail.com

--- Comment #1 from RazvanN <razvan.nitu1305 at gmail.com> ---
This seems to be done on purpose, although I can't figure out the reason
(except for ease of implementation).

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