8868     NamedDecl *PrevDecl =  in ActOnStartNamespaceDef()  local
8870     PrevNS = dyn_cast_or_null<NamespaceDecl>(PrevDecl);  in ActOnStartNamespaceDef()
8877     } else if (PrevDecl) {  in ActOnStartNamespaceDef()
8881       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnStartNamespaceDef()
9726                                             UsingShadowDecl *PrevDecl) {  in BuildUsingShadowDecl()  argument
9755   Shadow->setPreviousDecl(PrevDecl);  in BuildUsingShadowDecl()
10165     UsingShadowDecl *PrevDecl = nullptr;  in BuildUsingDeclaration()  local
10166     if (!CheckUsingShadowDecl(UD, *I, Previous, PrevDecl))  in BuildUsingDeclaration()
10167       BuildUsingShadowDecl(S, UD, *I, PrevDecl);  in BuildUsingDeclaration()
10679     NamedDecl *PrevDecl = PrevR.getRepresentativeDecl();  in ActOnNamespaceAliasDef()  local
10680     if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(PrevDecl)) {  in ActOnNamespaceAliasDef()
10685       } else if (isVisible(PrevDecl)) {  in ActOnNamespaceAliasDef()
10692     } else if (isVisible(PrevDecl)) {  in ActOnNamespaceAliasDef()
10693       unsigned DiagID = isa<NamespaceDecl>(PrevDecl->getUnderlyingDecl())  in ActOnNamespaceAliasDef()
10697       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnNamespaceAliasDef()
13847   if (NamedDecl *PrevDecl = LookupSingleName(S, II, D.getIdentifierLoc(),  in ActOnExceptionDeclarator()  local
13853     assert(!S->isDeclScope(PrevDecl));  in ActOnExceptionDeclarator()
13854     if (isDeclInScope(PrevDecl, CurContext, S)) {  in ActOnExceptionDeclarator()
13857       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnExceptionDeclarator()
13859     } else if (PrevDecl->isTemplateParameter())  in ActOnExceptionDeclarator()
13861       DiagnoseTemplateParameterShadow(D.getIdentifierLoc(), PrevDecl);  in ActOnExceptionDeclarator()
15584   NamedDecl *PrevDecl = nullptr;  in HandleMSProperty()  local
15591     PrevDecl = Previous.getAsSingle<NamedDecl>();  in HandleMSProperty()
15595     PrevDecl = Previous.getRepresentativeDecl();  in HandleMSProperty()
15604   if (PrevDecl && PrevDecl->isTemplateParameter()) {  in HandleMSProperty()
15606     DiagnoseTemplateParameterShadow(D.getIdentifierLoc(), PrevDecl);  in HandleMSProperty()
15608     PrevDecl = nullptr;  in HandleMSProperty()
15611   if (PrevDecl && !isDeclInScope(PrevDecl, Record, S))  in HandleMSProperty()
15612     PrevDecl = nullptr;  in HandleMSProperty()
15628   if (NewPD->isInvalidDecl() && PrevDecl) {  in HandleMSProperty()