[clang] RFC: [cmake] Export CLANG_RESOURCE_DIR in ClangConfig (PR #97197)

[Kim Gräsman via cfe-commits]

kimgr wrote:

@llvm-beanz Thanks for clarifying! Yeah, I no longer think this PR has anything to offer. If you think it's future-proof to assume the interface include dir of clang-resource-headers is one level down from the resource dir, that works to polish and seed it into a hardwired `-resource-dir` switch.

https://github.com/llvm/llvm-project/pull/97197