[llvm] Gsymutil aggregation similar to DwarfDump --verify (PR #81154)

[Kevin Frei via llvm-commits]

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@@ -10,8 +10,10 @@
 #define LLVM_DEBUGINFO_GSYM_GSYMCREATOR_H
 
 #include <functional>
+#include <map>
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kevinfrei wrote:

Leftovers from earlier, undone changes.

https://github.com/llvm/llvm-project/pull/81154