)       : super(request.offset),         request = request;    @override   void declaredClass(ClassDeclaration declaration) {     // ignored   }    @override   void declaredClassTypeAlias(ClassTypeAlias declaration) {     // ignored   }    @override   void declaredField(FieldDeclaration fieldDecl, VariableDeclaration varDecl) {     // ignored   }    @override   void declaredFunction(FunctionDeclaration declaration) {     // ignored   }    @override   void declaredFunctionTypeAlias(FunctionTypeAlias declaration) {     // ignored   }    @override   void declaredLabel(Label label, bool isCaseLabel) {     