[AST] Drop const from a return type (NFC) (#140665)

Author: kazutakahirata

clang/lib/AST/ByteCode/Record.cpp

@@ -29,7 +29,7 @@ Record::Record(const RecordDecl *Decl, BaseList &&SrcBases,
     VirtualBaseMap[V.Decl] = &V;
 }
 
-const std::string Record::getName() const {
+std::string Record::getName() const {
   std::string Ret;
   llvm::raw_string_ostream OS(Ret);
   Decl->getNameForDiagnostic(OS, Decl->getASTContext().getPrintingPolicy(),

clang/lib/AST/ByteCode/Record.h

@@ -52,7 +52,7 @@ class Record final {
   /// Returns the underlying declaration.
   const RecordDecl *getDecl() const { return Decl; }
   /// Returns the name of the underlying declaration.
-  const std::string getName() const;
+  std::string getName() const;
   /// Checks if the record is a union.
   bool isUnion() const { return IsUnion; }
   /// Checks if the record is an anonymous union.