[Reg 5.7 -> 5.8] QML profiler integration duplicates signal handler locations

Profile some QML with signal handlers. Each invocation of the signal handler will show up as its own distinct location in QML profiler. They should be aggregated. Apparently a separate location is generated for each QQuickItem that emits the signal. So the following code will show 5 separate signals, although it should only show one:

import QtQuick 2.7
import QtQuick.Window 2.2

Window {
    id: window
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    Repeater {
        model: 5
        Rectangle {
            height: 10
            width: window.width
            onWidthChanged: console.log(width);
        }
    }
}