[flang-commits] [flang] [llvm] [flang] Implement SPLIT intrinsic subroutine with tests (PR #185584)

[Eugene Epshteyn via flang-commits]

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

I have a request to add tests with different character kinds, but otherwise LGTM.

https://github.com/llvm/llvm-project/pull/185584