Problem when passing a pointer to call_function.

Hello,

I'm facing a "assertion failed: crep && your are trying to use an
unregistered type" policy.hpp line 192" when I tried to call a Lua
function from C++. I've done many tests and the matter happens when I
try to pass "loader" as a parameter of the lua function.

================================
template<class T>
bool
AddLoader(ILoader<T>* loader,std::string extensions){
        luabind::object obj =
luabind::globals(CGameEngine::GetInstance()->mScript.mLuaState)["AddLoader"];
        if(!(obj && luabind::type(obj) == LUA_TFUNCTION)) {
            return false;
        }

        bool ok = luabind::call_function<bool>(obj,loader,extensions);
}
================================

i'm using luabind 8.* .

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