Ensure correct expression type for static expressions in menu parsing but do not enforce when permissive

src/ObjLoading/Game/IW5/Menu/MenuConverterIW5.cpp

@@ -753,7 +753,8 @@ namespace IW5
                         continue;
                     }
 
-                    assert(false);
+                    // Do not consider this a mistake since the games menus do this by mistake and it should be able to compile them anyway
+                    // But the game should also not know what to do with this i guess
                     expressionIsStatic = false;
                 }