Full array support for QML list properties (and variant properties that contain lists)

import Qt 4.7

Rectangle {
    id: rect
    width: 640
    height: 480

    property variant a: []

    Component.onCompleted: {
        console.log("a===rect.a:", a===rect.a);
        console.log("isArray:", Array.isArray(a));
        for(var i=0; i< 4; i++) {
            a.push( i );
            console.log(i, "a > ", JSON.stringify(a), a.length);
        }

        var aa = rect.a;       // reassigning fixed the problem
        for(var i=0; i< 4; i++) {
            aa.push( i );
            console.log(i, "aa > ", JSON.stringify(aa), aa.length);
        }

    }
}
/*
Outputs the following:

a===rect.a: false
isArray: true
0 a >  [] 0
1 a >  [] 0
2 a >  [] 0
3 a >  [] 0
0 aa >  [0] 1
1 aa >  [0,1] 2
2 aa >  [0,1,2] 3
3 aa >  [0,1,2,3] 4
*/