[flang-commits] [flang] [flang] Use `createOpWithBody` for section op, NFC (PR #74659)

[Valentin Clement バレンタイン クレメン via flang-commits]

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

Looks like a correct simplification. 

https://github.com/llvm/llvm-project/pull/74659