In some cases QML code model doesn't recognize objectName

There are some cases where it shows M16 error for objectName for all derived types (Rectangle for example), but it shows up correctly for QtObject. This also can happen with some kits and works fine with others.

So something like this can be shown as an error:

Rectangle {
 objectName: "x"
}

But this works:

QtObject {
 objectName: "x"
}