src/vs/platform/localizations/node/localizations.ts/LanguagePacksCache/updateHash
class LanguagePacksCache:	private updateHash(languagePack: ILanguagePack): void {
		if (languagePack) {
			const md5 = createHash('md5');
			for (const extension of languagePack.extensions) {
				md5.update(extension.extensionIdentifier.uuid || extension.extensionIdentifier.id).update(extension.version);
			}
			languagePack.hash = md5.digest('hex');
		}
	}