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

[Teresa Johnson via cfe-commits]

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

compiler-rt changes lgtm

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