[llvm] [llvm-gsymutil] Add option to load callsites from DWARF (PR #119913)

[Ellis Hoag via llvm-commits]

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@@ -191,6 +192,8 @@ static void parseArgs(int argc, char **argv) {
       std::exit(1);
     }
   }
+
+  LoadDwarfCallSites = Args.hasArg(OPT_dwarf_callsites);
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ellishg wrote:

Should we assert that `--callsites-yaml-file` and `--dwarf-callsites` are not both set?

https://github.com/llvm/llvm-project/pull/119913