So siehts ganz gut aus !

node_modules/es5-ext/object/get-property-names.js

@@ -0,0 +1,17 @@
+"use strict";
+
+var uniq                = require("../array/#/uniq")
+  , value               = require("./valid-value")
+  , push                = Array.prototype.push
+  , getOwnPropertyNames = Object.getOwnPropertyNames
+  , getPrototypeOf      = Object.getPrototypeOf;
+
+module.exports = function (obj) {
+	var keys;
+	obj = Object(value(obj));
+	keys = getOwnPropertyNames(obj);
+	while ((obj = getPrototypeOf(obj))) {
+		push.apply(keys, getOwnPropertyNames(obj));
+	}
+	return uniq.call(keys);
+};