[libc-commits] [libc] [libc] Add merge_yaml_files feature to hdrgen (PR #127269)

[Caslyn Tonelli via libc-commits]

https://github.com/Caslyn approved this pull request.

Is this the forward fix for https://github.com/llvm/llvm-project/pull/127269? If we need to merge this in a pinch, LGTM. But I would defer to @jhuber6 for a proper review of the python code.

https://github.com/llvm/llvm-project/pull/127269