[llvm] [yaml2obj][obj2yaml][objdump] Handle MIPS COFF files (PR #112591)

[James Henderson via llvm-commits]

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@@ -0,0 +1,76 @@
+!COFF
+header: !Header
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jh7370 wrote:

Let's minimise this input file and inline it into the test that needs it. I think the only significant parts of it are the machine type and relocations. Most of the rest can be reduced/removed. It doesn't need to be a fully runnable binary, for instance, for the purposes of this feature.

https://github.com/llvm/llvm-project/pull/112591