7981     NamedDecl *OldDecl = nullptr;  in CheckUsingShadowDecl()  local
7982     switch (CheckOverload(nullptr, FD, Previous, OldDecl,  in CheckUsingShadowDecl()
8005     Diag(OldDecl->getLocation(), diag::note_using_decl_conflict);  in CheckUsingShadowDecl()
8803     TypeAliasTemplateDecl *OldDecl = nullptr;  in ActOnAliasDeclaration()  local
8823       OldDecl = Previous.getAsSingle<TypeAliasTemplateDecl>();  in ActOnAliasDeclaration()
8824       if (!OldDecl && !Invalid) {  in ActOnAliasDeclaration()
8835       if (!Invalid && OldDecl && !OldDecl->isInvalidDecl()) {  in ActOnAliasDeclaration()
8837                                            OldDecl->getTemplateParameters(),  in ActOnAliasDeclaration()
8840           OldTemplateParams = OldDecl->getTemplateParameters();  in ActOnAliasDeclaration()
8844         TypeAliasDecl *OldTD = OldDecl->getTemplatedDecl();  in ActOnAliasDeclaration()
8875     else if (OldDecl)  in ActOnAliasDeclaration()
8876       NewDecl->setPreviousDecl(OldDecl);  in ActOnAliasDeclaration()