[llvm] [GSYM] Callsites: Add data format support and loading from YAML (PR #109781)

[Greg Clayton via llvm-commits]

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@@ -18,6 +18,8 @@ defm convert :
      "Convert the specified file to the GSYM format.\nSupported files include ELF and mach-o files that will have their debug info (DWARF) and symbol table converted">;
 def merged_functions :
   FF<"merged-functions", "Encode merged function information for functions in debug info that have matching address ranges.\nWithout this option one function per unique address range will be emitted.">;
+defm callsites_yaml_file :
+  Eq<"callsites-yaml-file", "Load call site info from YAML file.">;
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clayborg wrote:

Mention this is for testing only. Can we hide it?

https://github.com/llvm/llvm-project/pull/109781