Remove more superfluous write barriers.

src/objects.cc

Index: src/objects.cc
===================================================================
--- src/objects.cc	(revision 10013)
+++ src/objects.cc	(working copy)
@@ -5455,7 +5455,7 @@
     if (!maybe_array->ToObject(&array)) return maybe_array;
   }
   result->set(kBitField3StorageIndex, Smi::FromInt(0));
-  result->set(kContentArrayIndex, array);
+  result->set(kContentArrayIndex, array, SKIP_WRITE_BARRIER);

[Lasse Reichstein, 2011/11/18 12:26:28]

Do we know that result is in NewSpace? What if it's really big and goes to
LOSpace? 
At least make some asserts to ensure that result really, really only can be in
NewSpace.
Or comments, if it's obvious when you know it.

[Erik Corry, 2011/11/18 13:42:24]

I reverted this part of the change.

   result->set(kEnumerationIndexIndex,
               Smi::FromInt(PropertyDetails::kInitialIndex));
   return result;
@@ -9986,8 +9986,8 @@
   set(j, temp);
   if (this != numbers) {
     temp = numbers->get(i);
-    numbers->set(i, numbers->get(j));
-    numbers->set(j, temp);
+    numbers->set(i, Smi::cast(numbers->get(j)));
+    numbers->set(j, Smi::cast(temp));
   }
 }