[6.5] qmltc with signals does not compile MouseArea.onPressed

import QtQuick

Rectangle {
    id: root
    signal mySignal0()

    MouseArea {
        onPressed: root.mySignal0()
    }
}

myitem.cpp:197:14: error: no matching member function for call to 'connect'
    QObject::connect(this, &MyItem_MouseArea::pressed, this, &MyItem_MouseArea::pressed_slot);
    ~~~~~~~~~^~~~~~~