[Bug c++/124311] [16 Regression] [modules] Defaulted-in-class special member re-emitted across modules causes "cannot be overloaded with itself" since r16-3353

[kachalenko.denis at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124311

--- Comment #3 from Denys Kachalenko <kachalenko.denis at gmail dot com> ---
(In reply to Andrew Pinski from comment #2)
> Was this bug report created via LLM? Is so the patch might not be acceptable
> at all.

The bug, reproducer, and regression bisect are my own findings from testing
against a real project. I used an LLM as a research assistant while navigating
GCC sources during the root cause analysis.

The patch in the report is only a suggested direction to illustrate where the
issue appears to originate. I fully expect the maintainer to implement the
proper fix if the diagnosis is correct. Please feel free to disregard the patch
itself — the important part is the reproducer and the regression analysis.