Menu trim items with long text

import QtQuick 2.6
import QtQuick.Controls 2.0

ApplicationWindow {
    visible: true
    width: 640
    height: 480

    Menu {
        x: 100
        y: 100

        MenuItem {
            text: "Test text"
        }
        MenuItem {
            text: "Test text, that is somewhat longer than background"
        }
        Component.onCompleted: open()
    }
}