[Reg 5 -> 6] Referencing `arguments` in arrow function leads to segfault

In Qt5 `arguments` was available in both regular functions and arrow functions, what is not in line with JS specification. In Qt 6 `arguments` is no longer available within arrow functions, but in some circumstances leads to segfault, instead of printing error regarding undefined reference.

Marked also as a 5.15 bug because `arguments` should not be available for arrow functions there.

import QtQuick
import QtQuick.Controls

Window {
    id: root

    visible: true

    Item {
        id: item

        signal hello(string arg)

        Button {
            text: "button"
            onClicked: item.hello("world")
        }

        onHello: (arg) => {
            console.log(JSON.stringify(arguments))
        }
    }
}