Function $set

test/babel.js:21276–21280

(value)

	    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
	    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
	    var $set = function $set(value) {
	      if (this === ObjectProto) $set.call(OPSymbols, value);
	      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
	      setSymbolDesc(this, tag, createDesc(1, value));
	    };
	    if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });
	    return wrap(tag);
	  };