[llvm] [RuntimeDyld][ELF][AArch64] Fix resolveAArch64ShortBranch. (PR #92245)

[Alastair Houghton via llvm-commits]

al45tair wrote:

> Ping. Do you need anything else from me? This is blocking testing for us.

It looks like the LLVM you were using didn't have line numbers, which is what I was hoping we'd get here (addresses aren't meaningful because of ASLR, and I think the assertion in question has been inlined from somewhere into `resolveAArch64Relocation`).

Mostly what I need is to find the time to look at it. I suspect once we know what the assertion failure was, it'll be obvious what the problem is.

https://github.com/llvm/llvm-project/pull/92245