src/vs/workbench/browser/parts/views/viewPaneContainer.ts/ViewPaneContainer/openView
class ViewPaneContainer:	openView(id: string, focus?: boolean): IView | undefined {
		let view = this.getView(id);
		if (!view) {
			this.toggleViewVisibility(id);
		}
		view = this.getView(id);
		if (view) {
			view.setExpanded(true);
			if (focus) {
				view.focus();
			}
		}
		return view;
	}