[llvm] [DwarfDump] Add new set of line-table-related statistics to llvm-dwarfdump (PR #93289)

[J. Ryan Stinnett via llvm-commits]

jryans wrote:

Since this adds new stats, I suppose the schema on LNT may need to be updated... Perhaps @adrian-prantl can help with that once this merges.

https://github.com/llvm/llvm-project/pull/93289