Deprecate FACTORY helper macro.

test/cctest/test-serialize.cc

Index: test/cctest/test-serialize.cc
diff --git a/test/cctest/test-serialize.cc b/test/cctest/test-serialize.cc
index f87eb96e9db01c01e7127c71f38ddf18fa2f110e..8973d5417884208d986be2dc94cb923ca73ef2ca 100644
--- a/test/cctest/test-serialize.cc
+++ b/test/cctest/test-serialize.cc
@@ -286,14 +286,15 @@ static void Deserialize() {
 
 
 static void SanityCheck() {
+  Isolate* isolate = Isolate::Current();
   v8::HandleScope scope(v8::Isolate::GetCurrent());
 #ifdef VERIFY_HEAP
   HEAP->Verify();
 #endif
-  CHECK(Isolate::Current()->global_object()->IsJSObject());
-  CHECK(Isolate::Current()->native_context()->IsContext());
+  CHECK(isolate->global_object()->IsJSObject());
+  CHECK(isolate->native_context()->IsContext());
   CHECK(HEAP->string_table()->IsStringTable());
-  CHECK(!FACTORY->InternalizeOneByteString(
+  CHECK(!isolate->factory()->InternalizeOneByteString(
       STATIC_ASCII_VECTOR("Empty"))->IsFailure());
 }