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

test/mjsunit/es6/generators-runtime.js

Index: test/mjsunit/es6/generators-runtime.js
diff --git a/test/mjsunit/es6/generators-runtime.js b/test/mjsunit/es6/generators-runtime.js
index 8fa70b62e0f5a691ed84e55be3d6e661ee428013..67bf102314ee9bff8032bb8cfb03ea946cfa4f68 100644
--- a/test/mjsunit/es6/generators-runtime.js
+++ b/test/mjsunit/es6/generators-runtime.js
@@ -30,7 +30,7 @@
 // See:
 // http://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorfunction-objects
 
-function f() { }
+function f() { "use strict"; }
 function* g() { yield 1; }
 var GeneratorFunctionPrototype = Object.getPrototypeOf(g);
 var GeneratorFunction = GeneratorFunctionPrototype.constructor;
@@ -51,18 +51,16 @@ function TestGeneratorFunctionInstance() {
     var prop = f_own_property_names[i];
     var f_desc = Object.getOwnPropertyDescriptor(f, prop);
     var g_desc = Object.getOwnPropertyDescriptor(g, prop);
-    assertEquals(f_desc.configurable, g_desc.configurable, prop);
-    if (prop === 'arguments' || prop === 'caller') {
-      // Unlike sloppy functions, which have read-only data arguments and caller
-      // properties, sloppy generators have a poison pill implemented via
-      // accessors
-      assertFalse('writable' in g_desc, prop);
-      assertTrue(g_desc.get instanceof Function, prop);
-      assertEquals(g_desc.get, g_desc.set, prop);
+    if (prop === "prototype") {
+      // ES6 draft 03-17-2015 section 25.2.2.2
+      assertFalse(g_desc.writable, prop);
+      assertFalse(g_desc.enumerable, prop);
+      assertFalse(g_desc.configurable, prop);
     } else {
+      assertEquals(f_desc.configurable, g_desc.configurable, prop);
       assertEquals(f_desc.writable, g_desc.writable, prop);
+      assertEquals(f_desc.enumerable, g_desc.enumerable, prop);
     }
-    assertEquals(f_desc.enumerable, g_desc.enumerable, prop);
   }
 }
 TestGeneratorFunctionInstance();