Function check

test/babel.js:48359–48362

(O, proto)

	var isObject = __webpack_require__(22),
	    anObject = __webpack_require__(19);
	var check = function check(O, proto) {
	  anObject(O);
	  if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
	};
	module.exports = {
	  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
	  function (test, buggy, set) {