11240     NamedDecl *PrevDecl =  in ActOnStartNamespaceDef()  local
11242     PrevNS = dyn_cast_or_null<NamespaceDecl>(PrevDecl);  in ActOnStartNamespaceDef()
11249     } else if (PrevDecl) {  in ActOnStartNamespaceDef()
11253       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnStartNamespaceDef()
12176                                             UsingShadowDecl *PrevDecl) {  in BuildUsingShadowDecl()  argument
12206   Shadow->setPreviousDecl(PrevDecl);  in BuildUsingShadowDecl()
12639     UsingShadowDecl *PrevDecl = nullptr;  in BuildUsingDeclaration()  local
12640     if (!CheckUsingShadowDecl(UD, *I, Previous, PrevDecl))  in BuildUsingDeclaration()
12641       BuildUsingShadowDecl(S, UD, *I, PrevDecl);  in BuildUsingDeclaration()
12689     UsingShadowDecl *PrevDecl = nullptr;  in BuildUsingEnumDeclaration()  local
12696     if (!CheckUsingShadowDecl(UD, EC, Previous, PrevDecl))  in BuildUsingEnumDeclaration()
12697       BuildUsingShadowDecl(S, UD, EC, PrevDecl);  in BuildUsingEnumDeclaration()
13254     NamedDecl *PrevDecl = PrevR.getRepresentativeDecl();  in ActOnNamespaceAliasDef()  local
13255     if (NamespaceAliasDecl *AD = dyn_cast<NamespaceAliasDecl>(PrevDecl)) {  in ActOnNamespaceAliasDef()
13260       } else if (isVisible(PrevDecl)) {  in ActOnNamespaceAliasDef()
13267     } else if (isVisible(PrevDecl)) {  in ActOnNamespaceAliasDef()
13268       unsigned DiagID = isa<NamespaceDecl>(PrevDecl->getUnderlyingDecl())  in ActOnNamespaceAliasDef()
13272       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnNamespaceAliasDef()
16579   if (NamedDecl *PrevDecl = LookupSingleName(S, II, D.getIdentifierLoc(),  in ActOnExceptionDeclarator()  local
16585     assert(!S->isDeclScope(PrevDecl));  in ActOnExceptionDeclarator()
16586     if (isDeclInScope(PrevDecl, CurContext, S)) {  in ActOnExceptionDeclarator()
16589       Diag(PrevDecl->getLocation(), diag::note_previous_definition);  in ActOnExceptionDeclarator()
16591     } else if (PrevDecl->isTemplateParameter())  in ActOnExceptionDeclarator()
16593       DiagnoseTemplateParameterShadow(D.getIdentifierLoc(), PrevDecl);  in ActOnExceptionDeclarator()
18522   NamedDecl *PrevDecl = nullptr;  in HandleMSProperty()  local
18529     PrevDecl = Previous.getAsSingle<NamedDecl>();  in HandleMSProperty()
18533     PrevDecl = Previous.getRepresentativeDecl();  in HandleMSProperty()
18542   if (PrevDecl && PrevDecl->isTemplateParameter()) {  in HandleMSProperty()
18544     DiagnoseTemplateParameterShadow(D.getIdentifierLoc(), PrevDecl);  in HandleMSProperty()
18546     PrevDecl = nullptr;  in HandleMSProperty()
18549   if (PrevDecl && !isDeclInScope(PrevDecl, Record, S))  in HandleMSProperty()
18550     PrevDecl = nullptr;  in HandleMSProperty()
18566   if (NewPD->isInvalidDecl() && PrevDecl) {  in HandleMSProperty()