[llvm] [Inliner] Fix bug where attributes are propagated incorrectly (PR #109347)

[Nikita Popov via llvm-commits]

https://github.com/nikic requested changes to this pull request.

This problem sounds familiar :) The right way to handle this is to query `InlinedFunctionInfo.isSimplified()`.

https://github.com/llvm/llvm-project/pull/109347