[lld] [LLD][COFF] Add support for ARM64X same-address thunks (PR #151255)

[Jacek Caban via llvm-commits]

cjacek wrote:

I could reproduce it reliably with an explicit assert and test extended to make the problem more likely. I created #152000 with a fix.

https://github.com/llvm/llvm-project/pull/151255