context: function xtv_thaw (){    if (this.frozen == 0)    {        ASSERT (0, "not frozen");        return;    }        if (--this.frozen == 0 && "changeStart" in this)    {        this.childData.onVisualFootprintChanged(this.changeStart,                                                this.changeAmount);    }        if ("needsResort" in this) {        this.childData.resort();        delete this.needsResort;    }            delete this.changeStart;    delete this.changeAmount;}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/9d5388e62933463fc6e0140861276dbb960b47ff/tree-utils.js/buggy/extensions/venkman/resources/content/tree-utils.js