Do not return Module& from internal funcs on Module&

A slight improvement in built binary size is achieved by not having
to generate code for the return.

include/chaiscript/utility/utility.hpp

@@ -78,7 +78,9 @@ namespace chaiscript
         t_module.add(chaiscript::constructor<Enum (const Enum &)>(), t_class_name);
 
         using namespace chaiscript::bootstrap::operators;
-        assign<Enum>(not_equal<Enum>(equal<Enum>(t_module)));
+        equal<Enum>(t_module);
+        not_equal<Enum>(t_module);
+        assign<Enum>(t_module);
 
         t_module.add(chaiscript::fun([](const Enum &e, const int &i) { return e == i; }), "==");
         t_module.add(chaiscript::fun([](const int &i, const Enum &e) { return i == e; }), "==");