src/vs/platform/userDataSync/common/abstractSynchronizer.ts/AbstractInitializer/parseSyncData
class AbstractInitializer:	private parseSyncData(content: string): ISyncData | undefined {
		try {
			const syncData: ISyncData = JSON.parse(content);
			if (isSyncData(syncData)) {
				return syncData;
			}
		} catch (error) {
			this.logService.error(error);
		}
		this.logService.info('Cannot parse sync data as it is not compatible with the current version.', this.resource);
		return undefined;
	}