54 }) ? function (it, key, D) {
57   dP(it, key, D);
58   if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
67 var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
68   return typeof it == 'symbol';
69 } : function (it) {
70   return it instanceof $Symbol;
73 var $defineProperty = function defineProperty(it, key, D) {  argument
74   if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
75   anObject(it);
80       if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
81       it[HIDDEN][key] = true;
83       if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
85     } return setSymbolDesc(it, key, D);
86   } return dP(it, key, D);
88 var $defineProperties = function defineProperties(it, P) {  argument
89   anObject(it);
94   while (l > i) $defineProperty(it, key = keys[i++], P[key]);
95   return it;
97 var $create = function create(it, P) {  argument
98   return P === undefined ? _create(it) : $defineProperties(_create(it), P);
105 var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {  argument
106   it = toIObject(it);
108   if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
109   var D = gOPD(it, key);
110   if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
113 var $getOwnPropertyNames = function getOwnPropertyNames(it) {  argument
114   var names = gOPN(toIObject(it));
122 var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {  argument
123   var IS_OP = it === ObjectProto;
124   var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
210   getOwnPropertySymbols: function getOwnPropertySymbols(it) {
211     return $GOPS.f(toObject(it));
223   stringify: function stringify(it) {
224     var args = [it];
229 …if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on unde…