[clang][tablegen][NFC]add static for internal linkage function (#117479)

Detected by misc-use-internal-linkage

Author: HerrCai0907

clang/utils/TableGen/ClangASTNodesEmitter.cpp

@@ -207,8 +207,9 @@ void clang::EmitClangASTNodes(const RecordKeeper &RK, raw_ostream &OS,
   ClangASTNodesEmitter(RK, N, S, PriorizeIfSubclassOf).run(OS);
 }
 
-void printDeclContext(const std::multimap<const Record *, const Record *> &Tree,
-                      const Record *DeclContext, raw_ostream &OS) {
+static void
+printDeclContext(const std::multimap<const Record *, const Record *> &Tree,
+                 const Record *DeclContext, raw_ostream &OS) {
   if (!DeclContext->getValueAsBit(AbstractFieldName))
     OS << "DECL_CONTEXT(" << DeclContext->getName() << ")\n";
   auto [II, E] = Tree.equal_range(DeclContext);

clang/utils/TableGen/ClangAttrEmitter.cpp

@@ -1821,9 +1821,9 @@ CreateSemanticSpellings(const std::vector<FlattenedSpelling> &Spellings,
   return Ret;
 }
 
-void WriteSemanticSpellingSwitch(StringRef VarName,
-                                 const SemanticSpellingMap &Map,
-                                 raw_ostream &OS) {
+static void WriteSemanticSpellingSwitch(StringRef VarName,
+                                        const SemanticSpellingMap &Map,
+                                        raw_ostream &OS) {
   OS << "  switch (" << VarName << ") {\n    default: "
     << "llvm_unreachable(\"Unknown spelling list index\");\n";
   for (const auto &I : Map)
@@ -2367,12 +2367,12 @@ template <typename Fn> static void forEachSpelling(const Record &Attr, Fn &&F) {
   }
 }
 
-std::map<StringRef, std::vector<const Record *>> NameToAttrsMap;
+static std::map<StringRef, std::vector<const Record *>> NameToAttrsMap;
 
 /// Build a map from the attribute name to the Attrs that use that name. If more
 /// than one Attr use a name, the arguments could be different so a more complex
 /// check is needed in the generated switch.
-void generateNameToAttrsMap(const RecordKeeper &Records) {
+static void generateNameToAttrsMap(const RecordKeeper &Records) {
   for (const auto *A : Records.getAllDerivedDefinitions("Attr")) {
     for (const FlattenedSpelling &S : GetFlattenedSpellings(*A)) {
       auto [It, Inserted] = NameToAttrsMap.try_emplace(S.name());
@@ -3965,9 +3965,9 @@ void EmitClangAttrASTVisitor(const RecordKeeper &Records, raw_ostream &OS) {
   OS << "#endif  // ATTR_VISITOR_DECLS_ONLY\n";
 }
 
-void EmitClangAttrTemplateInstantiateHelper(ArrayRef<const Record *> Attrs,
-                                            raw_ostream &OS,
-                                            bool AppliesToDecl) {
+static void
+EmitClangAttrTemplateInstantiateHelper(ArrayRef<const Record *> Attrs,
+                                       raw_ostream &OS, bool AppliesToDecl) {
 
   OS << "  switch (At->getKind()) {\n";
   for (const auto *Attr : Attrs) {
@@ -4622,7 +4622,7 @@ static bool isParamExpr(const Record *Arg) {
              .Default(false);
 }
 
-void GenerateIsParamExpr(const Record &Attr, raw_ostream &OS) {
+static void GenerateIsParamExpr(const Record &Attr, raw_ostream &OS) {
   OS << "bool isParamExpr(size_t N) const override {\n";
   OS << "  return ";
   auto Args = Attr.getValueAsListOfDefs("Args");
@@ -4633,8 +4633,8 @@ void GenerateIsParamExpr(const Record &Attr, raw_ostream &OS) {
   OS << "}\n\n";
 }
 
-void GenerateHandleAttrWithDelayedArgs(const RecordKeeper &Records,
-                                       raw_ostream &OS) {
+static void GenerateHandleAttrWithDelayedArgs(const RecordKeeper &Records,
+                                              raw_ostream &OS) {
   OS << "static void handleAttrWithDelayedArgs(Sema &S, Decl *D, ";
   OS << "const ParsedAttr &Attr) {\n";
   OS << "  SmallVector<Expr *, 4> ArgExprs;\n";