[clang] [llvm] [Clang] Fix definition of layout-compatible to ignore empty classes (PR #92103)

[Mital Ashok via cfe-commits]

MitalAshok wrote:

@Endilll @AaronBallman Removed the release note and the tests have passed again. Would appreciate if someone else could start the backport process afterwards since I don't know how to do it.


https://github.com/llvm/llvm-project/pull/92103