[llvm] [clang] [libc] [clang-tools-extra] [libcxx] [lld] [flang] [compiler-rt] [libcxxabi] [CSSPGO] Compute and report post-match profile staleness (PR #79090)

[via cfe-commits]

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@@ -433,12 +433,19 @@ using CandidateQueue =
     PriorityQueue<InlineCandidate, std::vector<InlineCandidate>,
                   CandidateComparer>;
 
+using IRAnchorMap = std::map<LineLocation, StringRef>;
+using ProfileAnchorMap = std::map<LineLocation, std::unordered_set<FunctionId>>;
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WenleiHe wrote:

As standalone types, add a comment explaining the key/value of the maps? Maybe just can move the original comments for these types here.

https://github.com/llvm/llvm-project/pull/79090