clCvalue
CClosure *f = clCvalue(fi);
CClosure *f = clCvalue(fi);
luaC_barrier(L, clCvalue(L->ci->func), fr);
return clCvalue(o)->f;
case LUA_TCCL: return clCvalue(o);
CClosure *func = clCvalue(ci->func);
f = clCvalue(func)->f;