[llvm-branch-commits] [clang] [llvm] release/19.x: [clang] Fix definition of layout-compatible to ignore empty classes (PR #101491)

[Vlad Serebrennikov via llvm-branch-commits]

Endilll wrote:

This should only affect `__builtin_is_layout_compatible` introduced in Clang 19, so we don't have an ABI we need to be compatible with.

https://github.com/llvm/llvm-project/pull/101491