Use new utility code

Cython/Compiler/ModuleNode.py

@@ -1015,7 +1015,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
 
         if type.is_cyp_class:
             code.globalstate.use_utility_code(
-                UtilityCode.load("CythonReferenceCounting", "ObjectHandling.c", proto_block="utility_code_proto_before_types"))
+                UtilityCode.load("CyObjects", "CyObjects.cpp", proto_block="utility_code_proto_before_types"))
 
     def generate_enum_definition(self, entry, code):
         code.mark_pos(entry.pos)