code: function findOwnerStack(instance) {
      if (!instance) {
        return [];
      }
  
      var stack = [];
      do {
        stack.push(instance);
      } while (instance = instance._currentElement._owner);
      stack.reverse();
      return stack;
    }
docs: Given a ReactCompositeComponent instance, return a list of its recursive
  owners, starting at the root and ending with the instance itself.