[flang-commits] [flang] [flang][Semantics] Check defined-operator purity at the use site (PR #229976)

[Yusuke MINATO via flang-commits]

https://github.com/yus3710-fj approved this pull request.

LGTM, thank you. Please wait for approval from @eugeneepshteyn.

https://github.com/llvm/llvm-project/pull/229976