So siehts ganz gut aus !

node_modules/es5-ext/test/safe-to-string.js

@@ -0,0 +1,12 @@
+"use strict";
+
+module.exports = function (t, a) {
+	a(t(), "undefined");
+	a(t(null), "null");
+	a(t(10), "10");
+	a(t("str"), "str");
+	a(t({ toString: function () { return "miszka"; } }), "miszka");
+	// eslint-disable-next-line symbol-description
+	if (typeof Symbol === "function") a(t(Symbol()), "Symbol()");
+	a(t(Object.create(null)), "<Non-coercible to string value>");
+};