src/vs/platform/extensionManagement/node/extensionsScanner.ts/ExtensionsScanner/saveMetadataForLocalExtension
class ExtensionsScanner:	async saveMetadataForLocalExtension(local: ILocalExtension, metadata: IMetadata): Promise<ILocalExtension> {
		this.setMetadata(local, metadata);
		await this.storeMetadata(local, { ...metadata, installedTimestamp: local.installedTimestamp });
		return local;
	}