Replace func_get_args() and use real arguments in LuaEngine

LuaEngine::checkType (called via checkString) is a public function,
so not changing the way it get the arg to check. Pass array of the
argument instead of using func_get_args()

Change-Id: I31182cb2a0a5d94252906b86b1df4b7d6d4a0eca
1 file changed