add some packages

node_modules/core-js/modules/_object-sap.js

@@ -0,0 +1,10 @@
+// most Object methods by ES6 should accept primitives
+var $export = require('./_export');
+var core = require('./_core');
+var fails = require('./_fails');
+module.exports = function (KEY, exec) {
+  var fn = (core.Object || {})[KEY] || Object[KEY];
+  var exp = {};
+  exp[KEY] = exec(fn);
+  $export($export.S + $export.F * fails(function () { fn(1); }), 'Object', exp);
+};