LayoutTests/svg/custom/insertItemBefore-from-non-list-origin.svg

<svg xmlns="http://www.w3.org/2000/svg">
<text x="10" y="50">This test passed, if it doesn't crash in a debug build (fires assertion).</text>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
}

var oFEConvolveMatrix = document.createElementNS("http://www.w3.org/2000/svg", "feConvolveMatrix");
document.createElementNS("http://www.w3.org/2000/svg", "altGlyph").x.baseVal.insertItemBefore(oFEConvolveMatrix.width.baseVal, 0);
</script>
</svg>