[clang] Allow direct dispatch for the ObjFW runtime (PR #126382)

[Eli Friedman via cfe-commits]

efriedma-quic wrote:

https://llvm.org/docs/GitHub.html#backporting-fixes-to-the-release-branches https://llvm.org/docs/HowToReleaseLLVM.html#release-patch-rules .

https://github.com/llvm/llvm-project/pull/126382