[lld] [llvm] [WebAssembly][Object] Support more elem segment flags (PR #123427)

[Sam Clegg via llvm-commits]

https://github.com/sbc100 commented:

Can you describe the change the binary test file?  Is that enough to test these changes?  This reminds my why we really shouldn't have binary test files :)

https://github.com/llvm/llvm-project/pull/123427