[Bug c++/124249] New: [reflection] wrong out-of-consteval-use for constant initializers

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124249

            Bug ID: 124249
           Summary: [reflection] wrong out-of-consteval-use for constant
                    initializers
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

As discussed in
<https://gcc.gnu.org/pipermail/gcc-patches/2026-February/709191.html>:

```
int i = (^^i, 42); // OK, MCE
```

but we give an error.