[Bug c++/106847] deprecated class data member makes the class generate diagnostics even when the member is not used

[avi at scylladb dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106847

--- Comment #1 from Avi Kivity <avi at scylladb dot com> ---
Clang equivalent: https://github.com/llvm/llvm-project/issues/55774