328 bool Sema::isAcceptableNestedNameSpecifier(const NamedDecl *SD,  in isAcceptableNestedNameSpecifier()  argument
330   if (!SD)  in isAcceptableNestedNameSpecifier()
333   SD = SD->getUnderlyingDecl();  in isAcceptableNestedNameSpecifier()
336   if (isa<NamespaceDecl>(SD))  in isAcceptableNestedNameSpecifier()
339   if (!isa<TypeDecl>(SD))  in isAcceptableNestedNameSpecifier()
344   QualType T = Context.getTypeDeclType(cast<TypeDecl>(SD));  in isAcceptableNestedNameSpecifier()
347   if (const TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(SD)) {  in isAcceptableNestedNameSpecifier()
356   } else if (isa<RecordDecl>(SD)) {  in isAcceptableNestedNameSpecifier()
358   } else if (isa<EnumDecl>(SD)) {  in isAcceptableNestedNameSpecifier()
665   NamedDecl *SD =  in BuildCXXNestedNameSpecifier()  local
668   bool AcceptSpec = isAcceptableNestedNameSpecifier(SD, &IsExtension);  in BuildCXXNestedNameSpecifier()
696           OuterDecl->getCanonicalDecl() != SD->getCanonicalDecl() &&  in BuildCXXNestedNameSpecifier()
697           (!isa<TypeDecl>(OuterDecl) || !isa<TypeDecl>(SD) ||  in BuildCXXNestedNameSpecifier()
700                                Context.getTypeDeclType(cast<TypeDecl>(SD))))) {  in BuildCXXNestedNameSpecifier()
707          Diag(SD->getLocation(), diag::note_ambig_member_ref_object_type)  in BuildCXXNestedNameSpecifier()
716     if (auto *TD = dyn_cast_or_null<TypedefNameDecl>(SD))  in BuildCXXNestedNameSpecifier()
725     DiagnoseUseOfDecl(SD, IdInfo.CCLoc);  in BuildCXXNestedNameSpecifier()
727     if (NamespaceDecl *Namespace = dyn_cast<NamespaceDecl>(SD)) {  in BuildCXXNestedNameSpecifier()
732     if (NamespaceAliasDecl *Alias = dyn_cast<NamespaceAliasDecl>(SD)) {  in BuildCXXNestedNameSpecifier()
738         Context.getTypeDeclType(cast<TypeDecl>(SD->getUnderlyingDecl()));  in BuildCXXNestedNameSpecifier()
744     if (const auto *USD = dyn_cast<UsingShadowDecl>(SD)) {  in BuildCXXNestedNameSpecifier()