src/vs/platform/userDataSync/common/extensionsSync.ts/ExtensionsSynchroniser/getAssociatedResources
class ExtensionsSynchroniser:	async getAssociatedResources({ uri }: ISyncResourceHandle): Promise<{ resource: URI; comparableResource: URI }[]> {
		return [{ resource: this.extUri.joinPath(uri, 'extensions.json'), comparableResource: ExtensionsSynchroniser.EXTENSIONS_DATA_URI }];
	}