[llvm] [DebugInfo][IndVarSimplify] fix missing debug location updates (PR #91443)

[J. Ryan Stinnett via llvm-commits]

https://github.com/jryans approved this pull request.

Thanks for working on this! It now looks ready to go to me. 😄 

Since you don't have merge access, I'll plan to merge this after waiting a day for others to review if they wish to.

https://github.com/llvm/llvm-project/pull/91443