arrange to create prototypes for generators

test/mjsunit/builtins.js

Index: test/mjsunit/builtins.js
diff --git a/test/mjsunit/builtins.js b/test/mjsunit/builtins.js
index 062cfd5689de3aea6757f42bf949be2da9f2be02..25f2e553f837c011e883448b8cb7ae9ef375067e 100644
--- a/test/mjsunit/builtins.js
+++ b/test/mjsunit/builtins.js
@@ -54,7 +54,11 @@ function checkConstructor(func, name) {
   assertFalse(proto_desc.writable, name);
   assertFalse(proto_desc.configurable, name);
   var prototype = proto_desc.value;
-  assertEquals(null, Object.getPrototypeOf(prototype), name);
+  var expected_prototype_of_prototype = null;
+  if (name == "GeneratorFunctionPrototype")

[rossberg, 2013/04/09 16:44:14]

Nit: use ?:

+    expected_prototype_of_prototype = Object.prototype;
+  assertEquals(expected_prototype_of_prototype,
+               Object.getPrototypeOf(prototype), name);
   for (var i = 0; i < propNames.length; i++) {
     var propName = propNames[i];
     if (propName == "constructor") continue;