[llvm] [GOFF] Wrap debug output with LLVM_DEBUG (PR #87252)

[Sean Perry via llvm-commits]

https://github.com/perry-ca commented:

looks god.  It might be helpful to but a tag at the beginning of the output so people know this is the GOFF record and a new line at the end.

https://github.com/llvm/llvm-project/pull/87252