New calling conventions, start on print.cpp

luprex/core/cpp/streambuffer.hpp

@@ -416,7 +416,7 @@ private:
     // This is for unit testing.
     bool layout_is(int64_t a, int64_t b, int64_t c);
     
-    friend int unittests_streambuffer(lua_State *L);
+    friend int lfn_unittests_streambuffer(lua_State *L);
 };