function PanelWithSidebarImpl(hostPanelName)
{
    ExtensionViewImpl.call(this, null);
    this._hostPanelName = hostPanelName;
    this.onSelectionChanged = new EventSink(events.PanelObjectSelected + hostPanelName);
}
@constructor
@extends {ExtensionViewImpl}
@param {string} hostPanelName