whole_func_string: function(control, newName) {
      var oldName = control.$name;
  
      if (this[oldName] === control) {
        delete this[oldName];
      }
      this[newName] = control;
      control.$name = newName;
    }
func_code_string: function(control, newName) {
      var oldName = control.$name;
  
      if (this[oldName] === control) {
        delete this[oldName];
      }
      this[newName] = control;
      control.$name = newName;
    }
func_documentation_string: Private API: rename a form control