Steps to reproduce

Run the manual test in qtdeclarative/tests/manual/platforms/android/, or some other Quick for Android project which involves giving a lambda in place of this listener interface, i.e:

m_secondServiceViewContent.setStatusChangeListener(qtQmlStatus -> {
  // Do stuff here ...
});

And you will get error:

error: incompatible types: QtQmlStatusChangeListener is not a functional interface
            m_secondServiceViewContent.setStatusChangeListener(qtQmlStatus -> {
                                      ^
    no abstract method found in interface QtQmlStatusChangeListener

This used to be valid before changes done for QTBUG-127420, I think specifically change I1dea9af32670e32fbe5bac7b7bcd16dde2341032.