[flang] [libcxxabi] [clang-tools-extra] [lld] [compiler-rt] [llvm] [libcxx] [libc] [clang] [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:

Also move this inside class `SampleProfileMatcher` since these types are internal to the matcher. 

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