[Bug middle-end/113987] Binding a reference to an uninitialized data member should not cause -Wuninitialized

[i at maskray dot me via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113987

--- Comment #1 from Fangrui Song <i at maskray dot me> ---
BTW,
https://github.com/llvm/llvm-project/blob/main/clang/test/SemaCXX/uninitialized.cpp
has many member initializer list examples