Function cloneElementWithValidation

docs/external/js/react.development.js:2037–2046

(element, props, children)

    return validatedFactory;
  }
  function cloneElementWithValidation(element, props, children) {
    var newElement = cloneElement.apply(this, arguments);

    for (var i = 2; i < arguments.length; i++) {
      validateChildKeys(arguments[i], newElement.type);
    }

    validatePropTypes(newElement);
    return newElement;
  }

  var enableSchedulerDebugging = false;
  var enableProfiling = true;