[clang] [llvm] [CMake] Version Darwin dylib identities (PR #189004)

[Steven Wu via cfe-commits]

cachemeifyoucan wrote:

I can't seem to reproduce that easily. The error is:
```
[2026-04-03T17:52:09.250Z] /Applications/CMake.app/Contents/bin/cmake -E cmake_symlink_library 'lib/libclang-cpp.23.0"".dylib' lib/libclang-cpp.23.0\"\".dylib lib/libclang-cpp.dylib && cd /Users/ec2-user/jenkins/workspace/m.org_clang-stage2-Rthinlto_main/clang-build/Build/tools/clang/tools/clang-shlib && /Users/ec2-user/jenkins/workspace/m.org_clang-stage2-Rthinlto_main/host-compiler/bin/dsymutil -o=libclang-cpp.23.0"".dylib.dSYM /Users/ec2-user/jenkins/workspace/m.org_clang-stage2-Rthinlto_main/clang-build/Build/lib/libclang-cpp.23.0"".dylib && /usr/bin/strip -S -x /Users/ec2-user/jenkins/workspace/m.org_clang-stage2-Rthinlto_main/clang-build/Build/lib/libclang-cpp.23.0"".dylib
[2026-04-03T17:52:09.250Z] error: cannot parse the debug map for '/Users/ec2-user/jenkins/workspace/m.org_clang-stage2-Rthinlto_main/clang-build/Build/lib/libclang-cpp.23.0.dylib': No such file or directory
```

The `libclang-cpp.23.0"".dylib` seems suspicious. Probably related to how the job is configured.

https://github.com/llvm/llvm-project/pull/189004