[clang] [compiler-rt] Reapply " [XRay] Add support for instrumentation of DSOs on x86_64 (#90959)" (PR #113548)

[Sebastian Kreutzer via cfe-commits]

sebastiankreutzer wrote:

Buildkite failure is due to unrelated errors in `libcxx/test/libcxx/headers_in_modulemap.sh.py`

https://github.com/llvm/llvm-project/pull/113548