[es6] do not add caller/arguments to ES6 function definitions

test/webkit/fast/js/Object-getOwnPropertyNames.js

Index: test/webkit/fast/js/Object-getOwnPropertyNames.js
diff --git a/test/webkit/fast/js/Object-getOwnPropertyNames.js b/test/webkit/fast/js/Object-getOwnPropertyNames.js
index 72bd21b4262c81cde234131f0572d3299be1387f..20e509ba96960bfa1cb6d5d1f102cca77507a70a 100644
--- a/test/webkit/fast/js/Object-getOwnPropertyNames.js
+++ b/test/webkit/fast/js/Object-getOwnPropertyNames.js
@@ -64,12 +64,12 @@ var expectedPropertyNamesSet = {
     "parseFloat": "['arguments', 'caller', 'length', 'name']",
     "isNaN": "['arguments', 'caller', 'length', 'name']",
     "isFinite": "['arguments', 'caller', 'length', 'name']",
-    "escape": "['arguments', 'caller', 'length', 'name']",
-    "unescape": "['arguments', 'caller', 'length', 'name']",
-    "decodeURI": "['arguments', 'caller', 'length', 'name']",
-    "decodeURIComponent": "['arguments', 'caller', 'length', 'name']",
-    "encodeURI": "['arguments', 'caller', 'length', 'name']",
-    "encodeURIComponent": "['arguments', 'caller', 'length', 'name']",
+    "escape": "['length', 'name']",
+    "unescape": "['length', 'name']",
+    "decodeURI": "['length', 'name']",
+    "decodeURIComponent": "['length', 'name']",
+    "encodeURI": "['length', 'name']",
+    "encodeURIComponent": "['length', 'name']",
 // Built-in ECMA objects
     "Object": "['arguments', 'caller', 'create', 'defineProperties', 'defineProperty', 'deliverChangeRecords', 'freeze', 'getNotifier', 'getOwnPropertyDescriptor', 'getOwnPropertyNames', 'getOwnPropertySymbols', 'getPrototypeOf', 'is', 'isExtensible', 'isFrozen', 'isSealed', 'keys', 'length', 'name', 'observe', 'preventExtensions', 'prototype', 'seal', 'setPrototypeOf', 'unobserve']",
     "Object.prototype": "['__defineGetter__', '__defineSetter__', '__lookupGetter__', '__lookupSetter__', '__proto__', 'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', 'toLocaleString', 'toString', 'valueOf']",