[flang] [llvm] [flang][OpenMP] Try to unify induction var privatization for OMP regions. (PR #91116)

[Kareem Ergawy via llvm-commits]

https://github.com/ergawy commented:

Thanks for the review. And sorry for the delay here, https://github.com/llvm/llvm-project/pull/90098 changed how things work and I had to find a solution for broken tests after merging with it.

https://github.com/llvm/llvm-project/pull/91116