[Bug c++/92552] [10 Regression] internal compiler error: in lazily_declare_fn, at cp/method.c:3045 with -fconcepts

[ensadc at mailnesia dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92552

ensadc at mailnesia dot com changed:

           What    |Removed                     |Added
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                 CC|                            |ensadc at mailnesia dot com

--- Comment #1 from ensadc at mailnesia dot com ---
Reduced:

template <typename T> struct basic_mixin {
  basic_mixin() requires true;
};
template <typename Cur>
struct mixin : basic_mixin<Cur> {
  using basic_mixin<Cur>::basic_mixin;
};
int main() {
  (void)__is_constructible(mixin<int>);
  // noexcept(mixin<int>()); also triggers ICE
}