anchor.diff:    void declaredTopLevelVar(
         VariableDeclarationList varList, VariableDeclaration varDecl) {
       var variableElement = varDecl.declaredElement;
  -    if (_shouldSuggest(variableElement) &&
  +    if (visibilityTracker._isVisible(variableElement) &&
           opType.includeReturnValueSuggestions) {
         builder.suggestTopLevelPropertyAccessor(
             (variableElement as TopLevelVariableElement).getter);
  
positive.code:       }
      }
      for (var method in type.methods) {
        if (_shouldSuggest(method.declaration)) {
          if (method.returnType == null) {
            memberBuilder.addSuggestionForMethod(
                method: method,
  
negative.code:   @override
    void declaredMethod(MethodDeclaration declaration) {
      var element = declaration.declaredElement;
      if (visibilityTracker._isVisible(element) &&
          (opType.includeReturnValueSuggestions ||
              opType.includeVoidReturnSuggestions) &&
          (!opType.inStaticMethodBody || declaration.isStatic)) {
  