[BOLT] Use *Set::insert_range (NFC) (#133601)

diff --git a/bolt/include/bolt/Passes/DominatorAnalysis.h b/bolt/include/bolt/Passes/DominatorAnalysis.h
index 3f3afa9..8eb4706 100644
--- a/bolt/include/bolt/Passes/DominatorAnalysis.h
+++ b/bolt/include/bolt/Passes/DominatorAnalysis.h
@@ -54,7 +54,7 @@
         HasNonDominatedPred = true;
       });
       if (HasDominatedPred && HasNonDominatedPred)
-        Result.insert(Candidates.begin(), Candidates.end());
+        Result.insert_range(Candidates);
       if ((*this->getStateAt(ProgramPoint::getLastPointAt(BB)))[DomIdx] &&
           BB.succ_begin() == BB.succ_end())
         Result.insert(ProgramPoint::getLastPointAt(BB));
diff --git a/bolt/lib/Core/BinaryFunction.cpp b/bolt/lib/Core/BinaryFunction.cpp
index 5ee33f5..0900624 100644
--- a/bolt/lib/Core/BinaryFunction.cpp
+++ b/bolt/lib/Core/BinaryFunction.cpp
@@ -1997,7 +1997,7 @@
 bool BinaryFunction::validateExternallyReferencedOffsets() {
   SmallPtrSet<MCSymbol *, 4> JTTargets;
   for (const JumpTable *JT : llvm::make_second_range(JumpTables))
-    JTTargets.insert(JT->Entries.begin(), JT->Entries.end());
+    JTTargets.insert_range(JT->Entries);
 
   bool HasUnclaimedReference = false;
   for (uint64_t Destination : ExternallyReferencedOffsets) {