7148                                            NamedDecl *NewDecl,  in checkDLLAttributeRedeclaration()  argument
7151   if (OldDecl->isInvalidDecl() || NewDecl->isInvalidDecl())  in checkDLLAttributeRedeclaration()
7161   if (TemplateDecl *NewTD = dyn_cast<TemplateDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
7162     NewDecl = NewTD->getTemplatedDecl();  in checkDLLAttributeRedeclaration()
7166   if (!OldDecl || !NewDecl)  in checkDLLAttributeRedeclaration()
7171   const DLLImportAttr *NewImportAttr = NewDecl->getAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7172   const DLLExportAttr *NewExportAttr = NewDecl->getAttr<DLLExportAttr>();  in checkDLLAttributeRedeclaration()
7206     S.Diag(NewDecl->getLocation(), DiagID)  in checkDLLAttributeRedeclaration()
7207         << NewDecl  in checkDLLAttributeRedeclaration()
7211       NewDecl->setInvalidDecl();  in checkDLLAttributeRedeclaration()
7223   if (const auto *VD = dyn_cast<VarDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
7229   } else if (const auto *FD = dyn_cast<FunctionDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
7237       !NewDecl->isLocalExternDecl() && !IsQualifiedFriend) {  in checkDLLAttributeRedeclaration()
7241             NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7244         NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7246         S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7248             << NewDecl;  in checkDLLAttributeRedeclaration()
7250         NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7251         NewDecl->addAttr(DLLExportAttr::CreateImplicit(  in checkDLLAttributeRedeclaration()
7258       S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7260           << NewDecl << OldImportAttr;  in checkDLLAttributeRedeclaration()
7264       NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7270     NewDecl->dropAttr<DLLImportAttr>();  in checkDLLAttributeRedeclaration()
7271     S.Diag(NewDecl->getLocation(),  in checkDLLAttributeRedeclaration()
7273         << NewDecl << OldImportAttr;  in checkDLLAttributeRedeclaration()
7280   if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(NewDecl)) {  in checkDLLAttributeRedeclaration()
7287         NewDecl->addAttr(NewAttr);  in checkDLLAttributeRedeclaration()