[llvm] [BOLT] Introduce profile-use-std-hash (PR #74253)

[Maksim Panchenko via llvm-commits]

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@@ -31,6 +31,11 @@ static llvm::cl::opt<bool>
 llvm::cl::opt<bool> ProfileUseDFS("profile-use-dfs",
                                   cl::desc("use DFS order for YAML profile"),
                                   cl::Hidden, cl::cat(BoltOptCategory));
+
+llvm::cl::opt<bool>
+    ProfileUseStdHash("profile-use-std-hash",
+                      cl::desc("use std::hash for YAML profile"), cl::Hidden,
+                      cl::cat(BoltOptCategory));
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maksfb wrote:

If we keep this option, could you move it to `YAMLProfileWriter.cpp` with a description "use ... for writing YAML profile" and make it `ReallyHidden`?

https://github.com/llvm/llvm-project/pull/74253