output.js

var _Map = require("@babel/runtime-corejs2/core-js/map.js");

var _Symbol = require("@babel/runtime-corejs2/core-js/symbol.js");

var _Promise = require("@babel/runtime-corejs2/core-js/promise.js");

obj.constructor === Object;
obj.constructor === _Promise;

_Symbol();

_Symbol("test");

new _Map();