[llvm] [Archive][COFF] Split hybrid COFF files when adding them to an archive (PR #205160)

[Martin Storsjö via llvm-commits]

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+# RUN: yaml2obj %s -o %t.o
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mstorsjo wrote:

I think this testcase would need to have some comments saying what it tests and why.

I guess it's meant to test the handling for when the `.llvm.arm64x` section isn't the last one, and we need to update offsets?

https://github.com/llvm/llvm-project/pull/205160