Eli Friedman found a case that was not handled correctly by #154833 where we failed to split the module if it contained a __cfi_check function but no type metadata. Handle this case correctly by checking for __cfi_check when deciding whether to split. Reviewers: teresajohnson, efriedma-quic Reviewed By: efriedma-quic Pull Request: https://github.com/llvm/llvm-project/pull/155930