src/vs/workbench/services/views/common/viewContainerModel.ts/ViewContainerModel/isViewDescriptorVisible
class ViewContainerModel:	private isViewDescriptorVisible(viewDescriptorItem: IViewDescriptorItem): boolean {
		if (!viewDescriptorItem.state.active) {
			return false;
		}
		return this.isViewDescriptorVisibleWhenActive(viewDescriptorItem);
	}