Upgrade V8 to 5.1.281.57  DO NOT MERGE

FPIIM-449

Change-Id: Id981b686b4d587ac31697662eb98bb34be42ad90
(cherry picked from commit 3b9bc31999c9787eb726ecdbfd5796bfdec32a18)
diff --git a/test/cctest/test-dictionary.cc b/test/cctest/test-dictionary.cc
index 0d4edf5..cc4a753 100644
--- a/test/cctest/test-dictionary.cc
+++ b/test/cctest/test-dictionary.cc
@@ -82,7 +82,7 @@
     CHECK_EQ(table->NumberOfElements(), i + 1);
     CHECK_NE(table->FindEntry(key), HashMap::kNotFound);
     CHECK_EQ(table->Lookup(key), *value);
-    CHECK(key->GetIdentityHash()->IsSmi());
+    CHECK(JSReceiver::GetIdentityHash(isolate, key)->IsSmi());
   }
 
   // Keys never added to the map which already have an identity hash
@@ -92,7 +92,7 @@
     CHECK(JSReceiver::GetOrCreateIdentityHash(key)->IsSmi());
     CHECK_EQ(table->FindEntry(key), HashMap::kNotFound);
     CHECK_EQ(table->Lookup(key), CcTest::heap()->the_hole_value());
-    CHECK(key->GetIdentityHash()->IsSmi());
+    CHECK(JSReceiver::GetIdentityHash(isolate, key)->IsSmi());
   }
 
   // Keys that don't have an identity hash should not be found and also
@@ -100,8 +100,8 @@
   for (int i = 0; i < 100; i++) {
     Handle<JSReceiver> key = factory->NewJSArray(7);
     CHECK_EQ(table->Lookup(key), CcTest::heap()->the_hole_value());
-    Object* identity_hash = key->GetIdentityHash();
-    CHECK_EQ(identity_hash, CcTest::heap()->undefined_value());
+    Handle<Object> identity_hash = JSReceiver::GetIdentityHash(isolate, key);
+    CHECK_EQ(CcTest::heap()->undefined_value(), *identity_hash);
   }
 }