11143     NamedDecl *PrevDecl =  in ActOnStartNamespaceDef()  local
11145     PrevNS = dyn_cast_or_null<NamespaceDecl>(PrevDecl);  in ActOnStartNamespaceDef()
11152     } else if (PrevDecl) {  in ActOnStartNamespaceDef()
11156       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnStartNamespaceDef()
12068                                             UsingShadowDecl *PrevDecl) {  in BuildUsingShadowDecl()  argument
12098   Shadow->setPreviousDecl(PrevDecl);  in BuildUsingShadowDecl()
12531     UsingShadowDecl *PrevDecl = nullptr;  in BuildUsingDeclaration()  local
12532     if (!CheckUsingShadowDecl(UD, *I, Previous, PrevDecl))  in BuildUsingDeclaration()
12533       BuildUsingShadowDecl(S, UD, *I, PrevDecl);  in BuildUsingDeclaration()
12580     UsingShadowDecl *PrevDecl = nullptr;  in BuildUsingEnumDeclaration()  local
12587     if (!CheckUsingShadowDecl(UD, EC, Previous, PrevDecl))  in BuildUsingEnumDeclaration()
12588       BuildUsingShadowDecl(S, UD, EC, PrevDecl);  in BuildUsingEnumDeclaration()
13145     NamedDecl *PrevDecl = PrevR.getRepresentativeDecl();  in ActOnNamespaceAliasDef()  local
13146     if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(PrevDecl)) {  in ActOnNamespaceAliasDef()
13151       } else if (isVisible(PrevDecl)) {  in ActOnNamespaceAliasDef()
13158     } else if (isVisible(PrevDecl)) {  in ActOnNamespaceAliasDef()
13159       unsigned DiagID = isa<NamespaceDecl>(PrevDecl->getUnderlyingDecl())  in ActOnNamespaceAliasDef()
13163       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnNamespaceAliasDef()
16510   if (NamedDecl *PrevDecl = LookupSingleName(S, II, D.getIdentifierLoc(),  in ActOnExceptionDeclarator()  local
16516     assert(!S->isDeclScope(PrevDecl));  in ActOnExceptionDeclarator()
16517     if (isDeclInScope(PrevDecl, CurContext, S)) {  in ActOnExceptionDeclarator()
16520       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnExceptionDeclarator()
16522     } else if (PrevDecl->isTemplateParameter())  in ActOnExceptionDeclarator()
16524       DiagnoseTemplateParameterShadow(D.getIdentifierLoc(), PrevDecl);  in ActOnExceptionDeclarator()
18311   NamedDecl *PrevDecl = nullptr;  in HandleMSProperty()  local
18318     PrevDecl = Previous.getAsSingle<NamedDecl>();  in HandleMSProperty()
18322     PrevDecl = Previous.getRepresentativeDecl();  in HandleMSProperty()
18331   if (PrevDecl && PrevDecl->isTemplateParameter()) {  in HandleMSProperty()
18333     DiagnoseTemplateParameterShadow(D.getIdentifierLoc(), PrevDecl);  in HandleMSProperty()
18335     PrevDecl = nullptr;  in HandleMSProperty()
18338   if (PrevDecl && !isDeclInScope(PrevDecl, Record, S))  in HandleMSProperty()
18339     PrevDecl = nullptr;  in HandleMSProperty()
18355   if (NewPD->isInvalidDecl() && PrevDecl) {  in HandleMSProperty()