[llvm] [XCOFF][obj2yaml] Support SymbolAlignmentAndType as 2 separate fields in YAML. (PR #76828)

[James Henderson via llvm-commits]

jh7370 wrote:

Actually, please could you check the buildkit failures: they look to be tied to this PR, so I'm concerned there might be something you've done wrong?

https://github.com/llvm/llvm-project/pull/76828