[llvm] [BOLT] Add itrace aggregation for AUX data (PR #70426)

[Jonathan Davies via llvm-commits]

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@@ -155,6 +160,8 @@ void DataAggregator::findPerfExecutable() {
 }
 
 void DataAggregator::start() {
+  std::string ItracePerfScriptArgs;
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jonathandavies-arm wrote:

I just saw other std::string being declared at the beginning of functions. I've moved the declaration into the if statement scope.

https://github.com/llvm/llvm-project/pull/70426