[clang] [llvm] [ORC] Move DebugObjectManagerPlugin into Debugging/ELFDebugObjectPlugin (NFC) (PR #168343)

[Stefan Gränitz via cfe-commits]

weliveindetail wrote:

Thanks. Yes, just looking into it. I think object is missing from libLLVMOrcDebugging.so

https://github.com/llvm/llvm-project/pull/168343