[clang] Use range constructors of *Set (NFC)

clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp

@@ -86,7 +86,7 @@ StorageLocation &DataflowAnalysisContext::createStorageLocation(QualType Type) {
 // Can't use `StringSet` as the return type as it doesn't support `operator==`.
 template <typename T>
 static llvm::DenseSet<llvm::StringRef> getKeys(const llvm::StringMap<T> &Map) {
-  return llvm::DenseSet<llvm::StringRef>(Map.keys().begin(), Map.keys().end());
+  return llvm::DenseSet<llvm::StringRef>(llvm::from_range, Map.keys());
 }
 
 RecordStorageLocation &DataflowAnalysisContext::createRecordStorageLocation(

clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp

@@ -129,8 +129,8 @@ static RecordDecl *buildRecordForGlobalizedVars(
   //       };
   RecordDecl *GlobalizedRD = C.buildImplicitRecord("_globalized_locals_ty");
   GlobalizedRD->startDefinition();
-  llvm::SmallPtrSet<const ValueDecl *, 16> SingleEscaped(
-      EscapedDeclsForTeams.begin(), EscapedDeclsForTeams.end());
+  llvm::SmallPtrSet<const ValueDecl *, 16> SingleEscaped(llvm::from_range,
+                                                         EscapedDeclsForTeams);
   for (const auto &Pair : GlobalizedVars) {
     const ValueDecl *VD = Pair.second;
     QualType Type = VD->getType();
@@ -322,8 +322,7 @@ class CheckVarsEscapingDeclContext final
 public:
   CheckVarsEscapingDeclContext(CodeGenFunction &CGF,
                                ArrayRef<const ValueDecl *> TeamsReductions)
-      : CGF(CGF), EscapedDecls(TeamsReductions.begin(), TeamsReductions.end()) {
-  }
+      : CGF(CGF), EscapedDecls(llvm::from_range, TeamsReductions) {}
   virtual ~CheckVarsEscapingDeclContext() = default;
   void VisitDeclStmt(const DeclStmt *S) {
     if (!S)

clang/lib/Sema/SemaTemplateVariadic.cpp

@@ -498,7 +498,7 @@ bool Sema::DiagnoseUnexpandedParameterPackInRequiresExpr(RequiresExpr *RE) {
   // We only care about unexpanded references to the RequiresExpr's own
   // parameter packs.
   auto Parms = RE->getLocalParameters();
-  llvm::SmallPtrSet<NamedDecl*, 8> ParmSet(Parms.begin(), Parms.end());
+  llvm::SmallPtrSet<NamedDecl *, 8> ParmSet(llvm::from_range, Parms);
   SmallVector<UnexpandedParameterPack, 2> UnexpandedParms;
   for (auto Parm : Unexpanded)
     if (ParmSet.contains(Parm.first.dyn_cast<NamedDecl *>()))

clang/lib/Tooling/Inclusions/Stdlib/StandardLibrary.cpp

@@ -77,7 +77,7 @@ static int countSymbols(Lang Language) {
   }
   }
 #undef SYMBOL
-  return llvm::DenseSet<StringRef>(Symbols.begin(), Symbols.end()).size();
+  return llvm::DenseSet<StringRef>(llvm::from_range, Symbols).size();
 }
 
 static int initialize(Lang Language) {

clang/unittests/Analysis/FlowSensitive/SimplifyConstraintsTest.cpp

@@ -24,8 +24,7 @@ class SimplifyConstraintsTest : public ::testing::Test {
 protected:
   llvm::SetVector<const Formula *> parse(StringRef Lines) {
     std::vector<const Formula *> formulas = test::parseFormulas(A, Lines);
-    llvm::SetVector<const Formula *> Constraints(formulas.begin(),
-                                                 formulas.end());
+    llvm::SetVector<const Formula *> Constraints(llvm::from_range, formulas);
     return Constraints;
   }