src/vs/workbench/browser/parts/panel/panelPart.ts/PanelPart/setStoredCachedViewletsValue
class PanelPart:	private setStoredCachedViewletsValue(value: string): void {
		this.storageService.store(PanelPart.PINNED_PANELS, value, StorageScope.GLOBAL, StorageTarget.USER);
	}