[llvm] [BOLT] Expose pseudo probe function checksum (PR #99389)

[via llvm-commits]

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@@ -377,6 +381,17 @@ class BinaryContext {
     RtLibrary = std::move(Lib);
   }
 
+  const MCPseudoProbeDecoder *getPseudoProbeDecoder() const {
+    return PseudoProbeDecoder.get();
+  }
+
+  MCPseudoProbeDecoder &
+  setPseudoProbeDecoder(std::unique_ptr<MCPseudoProbeDecoder> Decoder) {
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WenleiHe wrote:

nit: it's a bit unconventional to have setter return a reference. Nearby code all have a setter with void return and a dedicated setter. Suggest to be consistent.

https://github.com/llvm/llvm-project/pull/99389