[llvm] [BranchFolding] Merge debug locs on common hoisted code (PR #140063)

[Orlando Cazalet-Hyams via llvm-commits]

OCHyams wrote:

The pre-merge check failure `clang/test/Analysis/ftime-trace-no-init.cpp` seems to be spurious (or at least passes for me on windows and linux). 

https://github.com/llvm/llvm-project/pull/140063