159       NamedDecl *Existing;  member in clang::ASTDeclReader::FindExistingResult
166         : Reader(Reader), New(nullptr), Existing(nullptr), AddResult(false) {}  in FindExistingResult()
168       FindExistingResult(ASTReader &Reader, NamedDecl *New, NamedDecl *Existing)  in FindExistingResult()  argument
169         : Reader(Reader), New(New), Existing(Existing), AddResult(true) { }  in FindExistingResult()
172         : Reader(Other.Reader), New(Other.New), Existing(Other.Existing),   in FindExistingResult()
184       operator NamedDecl*() const { return Existing; }  in operator NamedDecl*()
187       operator T*() const { return dyn_cast_or_null<T>(Existing); }  in operator T*()
311     void mergeRedeclarable(Redeclarable<T> *D, T *Existing,
319                               RedeclarableTemplateDecl *Existing,
2017     if (T *Existing = ExistingRes)  in mergeRedeclarable()  local
2018       mergeRedeclarable(D, Existing, Redecl, TemplatePatternID);  in mergeRedeclarable()
2032                                          RedeclarableTemplateDecl *Existing,  in mergeTemplatePattern()  argument
2035   auto *ExistingPattern = Existing->getTemplatedDecl();  in mergeTemplatePattern()
2052 void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *DBase, T *Existing,  in mergeRedeclarable()  argument
2056   T *ExistingCanon = Existing->getCanonicalDecl();  in mergeRedeclarable()
2124     if (T *Existing = ExistingRes)  in mergeMergeable()  local
2126                                           Existing->getCanonicalDecl());  in mergeMergeable()
2387   if (!AddResult || Existing)  in ~FindExistingResult()
3049         ObjCCategoryDecl *&Existing = NameCategoryMap[Cat->getDeclName()];  in add()  local
3050         if (Existing &&   in add()
3051             Reader.getOwningModuleFile(Existing)   in add()
3066           Reader.Diag(Existing->getLocation(), diag::note_previous_definition);  in add()
3067         } else if (!Existing) {  in add()
3069           Existing = Cat;  in add()