[MC][profgen][NFC] Expand auto for MCDecodedPseudoProbe

Expand autos in select places in preparation to #102789.

Reviewers: dcci, maksfb, WenleiHe, rafaelauler, ayermolo, wlei-llvm

Reviewed By: WenleiHe, wlei-llvm

Pull Request: #102788

Author: aaupov

llvm/lib/MC/MCPseudoProbe.cpp

@@ -559,7 +559,7 @@ void MCPseudoProbeDecoder::printProbeForAddress(raw_ostream &OS,
                                                 uint64_t Address) {
   auto It = Address2ProbesMap.find(Address);
   if (It != Address2ProbesMap.end()) {
-    for (auto &Probe : It->second) {
+    for (const MCDecodedPseudoProbe &Probe : It->second) {
       OS << " [Probe]:\t";
       Probe.print(OS, GUID2FuncDescMap, true);
     }
@@ -586,7 +586,7 @@ MCPseudoProbeDecoder::getCallProbeForAddr(uint64_t Address) const {
   const auto &Probes = It->second;
 
   const MCDecodedPseudoProbe *CallProbe = nullptr;
-  for (const auto &Probe : Probes) {
+  for (const MCDecodedPseudoProbe &Probe : Probes) {
     if (Probe.isCall()) {
       // Disabling the assert and returning first call probe seen so far.
       // Subsequent call probes, if any, are ignored. Due to the the way

llvm/tools/llvm-profgen/ProfileGenerator.cpp

@@ -1185,7 +1185,7 @@ void ProfileGeneratorBase::extractProbesFromRange(
           Binary->getAddress2ProbesMap();
       auto It = Address2ProbesMap.find(IP.Address);
       if (It != Address2ProbesMap.end()) {
-        for (const auto &Probe : It->second) {
+        for (const MCDecodedPseudoProbe &Probe : It->second) {
           ProbeCounter[&Probe] += Count;
         }
       }