[llvm] [llvm-objdump] Add the --visualize-jumps option (PR #74858)

[Fangrui Song via llvm-commits]

MaskRay wrote:

> Hi @ostannard , I just tried your branch on some AArch64 code without any problems. Like the GNU version, this feature is very useful. What's stopping you from merging?

Quite a few comments from @jh7370 and @jthackray need to be addressed first. I just left some comments, too.

https://github.com/llvm/llvm-project/pull/74858