src/vs/workbench/browser/parts/paneCompositePart.ts/PaneCompositeParts/getPaneComposite
class PaneCompositeParts:	getPaneComposite(id: string, viewContainerLocation: ViewContainerLocation): PaneCompositeDescriptor | undefined {
		return this.getPartByLocation(viewContainerLocation).getPaneComposite(id);
	}