Consolidated property counting methods a bit.

src/handles.cc

Index: src/handles.cc
diff --git a/src/handles.cc b/src/handles.cc
index 34eaddbbd71e7395c360430a2f237df2bd484145..943a1c0b6ac833e1a0a5e614857e8bfd45a2e7ed 100644
--- a/src/handles.cc
+++ b/src/handles.cc
@@ -711,7 +711,7 @@ Handle<FixedArray> GetEnumPropertyKeys(Handle<JSObject> object,
                                 isolate);
     }
     isolate->counters()->enum_cache_misses()->Increment();
-    int num_enum = object->NumberOfEnumProperties();
+    int num_enum = object->NumberOfLocalProperties(DONT_ENUM);
     Handle<FixedArray> storage = isolate->factory()->NewFixedArray(num_enum);
     Handle<FixedArray> sort_array = isolate->factory()->NewFixedArray(num_enum);
     Handle<DescriptorArray> descs =
@@ -735,7 +735,7 @@ Handle<FixedArray> GetEnumPropertyKeys(Handle<JSObject> object,
     ASSERT(storage->length() == index);
     return storage;
   } else {
-    int num_enum = object->NumberOfEnumProperties();
+    int num_enum = object->NumberOfLocalProperties(DONT_ENUM);
     Handle<FixedArray> storage = isolate->factory()->NewFixedArray(num_enum);
     Handle<FixedArray> sort_array = isolate->factory()->NewFixedArray(num_enum);
     object->property_dictionary()->CopyEnumKeysTo(*storage, *sort_array);