src/vs/platform/extensionManagement/common/extensionGalleryService.ts/getCoreTranslationAssets
function getCoreTranslationAssets(version: IRawGalleryExtensionVersion): [string, IGalleryExtensionAsset][] {
	const coreTranslationAssetPrefix = 'Microsoft.VisualStudio.Code.Translation.';
	const result = version.files.filter(f => f.assetType.indexOf(coreTranslationAssetPrefix) === 0);
	return result.reduce<[string, IGalleryExtensionAsset][]>((result, file) => {
		const asset = getVersionAsset(version, file.assetType);
		if (asset) {
			result.push([file.assetType.substring(coreTranslationAssetPrefix.length), asset]);
		}
		return result;
	}, []);
}