[clang] [flang] [libcxx] [llvm] [llvm-reduce]: print short form, actionable names in the log (PR #132813)

[Matt Arsenault via llvm-commits]

arsenm wrote:

Yes, that's about right. I think the entry points should be renamed for consistency though. So keep the original reduceIFuncsDeltaPass instead of taking the old implementation detail name (like extractIFuncsFromModule)

https://github.com/llvm/llvm-project/pull/132813