6950                                            NamedDecl *NewDecl,  in checkDLLAttributeRedeclaration()  argument
6953   if (OldDecl->isInvalidDecl() || NewDecl->isInvalidDecl())  in checkDLLAttributeRedeclaration()
6963   if (TemplateDecl *NewTD = dyn_cast<TemplateDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
6964     NewDecl = NewTD->getTemplatedDecl();  in checkDLLAttributeRedeclaration()
6968   if (!OldDecl || !NewDecl)  in checkDLLAttributeRedeclaration()
6973   const DLLImportAttr *NewImportAttr = NewDecl->getAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
6974   const DLLExportAttr *NewExportAttr = NewDecl->getAttr<DLLExportAttr>();  in checkDLLAttributeRedeclaration()
7008     S.Diag(NewDecl->getLocation(), DiagID)  in checkDLLAttributeRedeclaration()
7009         << NewDecl  in checkDLLAttributeRedeclaration()
7013       NewDecl->setInvalidDecl();  in checkDLLAttributeRedeclaration()
7025   if (const auto *VD = dyn_cast<VarDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
7031   } else if (const auto *FD = dyn_cast<FunctionDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
7039       !NewDecl->isLocalExternDecl() && !IsQualifiedFriend) {  in checkDLLAttributeRedeclaration()
7043             NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7046         NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7048         S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7050             << NewDecl;  in checkDLLAttributeRedeclaration()
7052         NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7053         NewDecl->addAttr(DLLExportAttr::CreateImplicit(  in checkDLLAttributeRedeclaration()
7060       S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7062           << NewDecl << OldImportAttr;  in checkDLLAttributeRedeclaration()
7066       NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7072     NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7073     S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7075         << NewDecl << OldImportAttr;  in checkDLLAttributeRedeclaration()
7082   if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
7089         NewDecl->addAttr(NewAttr);  in checkDLLAttributeRedeclaration()