12003     NamedDecl *OldDecl = nullptr;  in CheckUsingShadowDecl()  local
12004     switch (CheckOverload(nullptr, FD, Previous, OldDecl,  in CheckUsingShadowDecl()
12027     Diag(OldDecl->getLocation(), diag::note_using_decl_conflict);  in CheckUsingShadowDecl()
13012     TypeAliasTemplateDecl *OldDecl = nullptr;  in ActOnAliasDeclaration()  local
13032       OldDecl = Previous.getAsSingle<TypeAliasTemplateDecl>();  in ActOnAliasDeclaration()
13033       if (!OldDecl && !Invalid) {  in ActOnAliasDeclaration()
13044       if (!Invalid && OldDecl && !OldDecl->isInvalidDecl()) {  in ActOnAliasDeclaration()
13046                                            OldDecl->getTemplateParameters(),  in ActOnAliasDeclaration()
13050               OldDecl->getMostRecentDecl()->getTemplateParameters();  in ActOnAliasDeclaration()
13054         TypeAliasDecl *OldTD = OldDecl->getTemplatedDecl();  in ActOnAliasDeclaration()
13085     else if (OldDecl) {  in ActOnAliasDeclaration()
13086       NewDecl->setPreviousDecl(OldDecl);  in ActOnAliasDeclaration()
13087       CheckRedeclarationInModule(NewDecl, OldDecl);  in ActOnAliasDeclaration()