get propertyIdentifier()
    {
        if ("_propertyIdentifier" in this)
            return this._propertyIdentifier;
        var section = this.treeOutline.section;
        this._propertyIdentifier = section.title + ":" + (section.subtitle ? section.subtitle + ":" : "") + this.propertyPath();
        return this._propertyIdentifier;
    }
@constructor
@extends {WebInspector.ObjectPropertyTreeElement}
@param {!WebInspector.RemoteObjectProperty} property