[lld] [llvm] [dyndbg][LLD][ELF] Prototype LLD support for dynamic debugging (PR #190939)

[Andrew Ng via llvm-commits]

nga888 wrote:

> I have added the fix for the issue that was found in our downstream testing.

I forgot to mention that the fix includes some additional symbol tracing for dynamic debugging. I've added testing to the existing `trace-symbols.s` lit test, but this could be moved to the `dynamic-debug.test` lit test if that would be preferred.

https://github.com/llvm/llvm-project/pull/190939