src/vs/workbench/services/extensionManagement/common/webExtensionsScannerService.ts/WebExtensionsScannerService/addExtension
class WebExtensionsScannerService:	async addExtension(location: URI): Promise<IExtension> {
		const webExtension = await this.toWebExtensionFromLocation(location);
		return this.addWebExtension(webExtension);
	}