[clang] [clang-tools-extra] [compiler-rt] [lldb] [llvm] [mlir] [openmp] [polly] fix(python): fix comparison to None (PR #91857)

[Maksim Levental via llvm-commits]

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

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![Screenshot_20240517_011154_com android chrome](https://github.com/llvm/llvm-project/assets/5657668/ece87aff-4c44-4f07-8176-1adeaa4ff32e)


https://github.com/llvm/llvm-project/pull/91857