[clang] [llvm] Reapply "[llvm][IR] Extend BranchWeightMetadata to track provenance of weights" (PR #95136)

[Paul Kirth via llvm-commits]

ilovepi wrote:

> What is the summary of the new changes that address the compile time issue?

I'm still looking at that, that's why I marked it as a draft, but I suspect I just missed updating https://github.com/llvm/llvm-project/blob/163d036d64609bf59183664aec244da5078dc1f1/llvm/lib/IR/ProfDataUtils.cpp#L244 . I'm trying the test-suite locally now to verify, and will update the patch, once I confirm it no longer modifies `.text`

https://github.com/llvm/llvm-project/pull/95136