add all frontend files

node_modules/es-abstract/2018/PromiseResolve.js

@@ -0,0 +1,18 @@
+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBind = require('call-bind');
+var $SyntaxError = require('es-errors/syntax');
+
+var $resolve = GetIntrinsic('%Promise.resolve%', true);
+var $PromiseResolve = $resolve && callBind($resolve);
+
+// https://262.ecma-international.org/9.0/#sec-promise-resolve
+
+module.exports = function PromiseResolve(C, x) {
+	if (!$PromiseResolve) {
+		throw new $SyntaxError('This environment does not support Promises.');
+	}
+	return $PromiseResolve(C, x);
+};
+