Update V8 to r4851 as required by WebKit r61121
Change-Id: Ib01b7c8e38d5b82b254192fc06365aa5b85780c5
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index b0a3fd6..f9b20a4 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -806,7 +806,8 @@
VerifyObjectField(JSGlobalProxy::kContextOffset);
// Make sure that this object has no properties, elements.
CHECK_EQ(0, properties()->length());
- CHECK_EQ(0, elements()->length());
+ CHECK(HasFastElements());
+ CHECK_EQ(0, FixedArray::cast(elements())->length());
}