[llvm] Aggregate errors from llvm-dwarfutil --verify (PR #79648)

[Kevin Frei via llvm-commits]

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@@ -30,6 +30,20 @@ class DWARFDebugAbbrev;
 class DataExtractor;
 struct DWARFSection;
 
+class OutputCategoryAggregator {
+private:
+  std::map<std::string, unsigned> Aggregation;
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kevinfrei wrote:

I reran tests with this change and then remembered why I went with std::map. It's sorted. llvm::StringMap isn't (hash-based). Add a single new category to the report and everything (might) get shuffled around, so I'd prefer to keep it a std::map.

https://github.com/llvm/llvm-project/pull/79648