[Issue 24021] Issue a warning on assert with side effects

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24021

--- Comment #2 from RazvanN <razvan.nitu1305 at gmail.com> ---
This could be implemented by a third party tool using dmd as a library. But I
don't think it should be implemented in the compiler.

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