[clang-tools-extra] [llvm-profdata] Do not create numerical strings for MD5 function names read from a Sample Profile. (PR #66164)

[via cfe-commits]

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@@ -836,7 +840,7 @@ std::error_code SampleProfileWriterBinary::writeBody(const 
FunctionSamples &S) {
     encodeULEB128(Sample.getSamples(), OS);
     encodeULEB128(Sample.getCallTargets().size(), OS);
     for (const auto &J : Sample.getSortedCallTargets()) {
-      StringRef Callee = J.first;
+      auto Callee = J.first;
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WenleiHe wrote:

nit: auto->ProfileFuncRef for readability. See 
https://llvm.org/docs/CodingStandards.html#use-auto-type-deduction-to-make-code-more-readable

https://github.com/llvm/llvm-project/pull/66164
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