src/vs/platform/log/common/fileLog.ts/FileLoggerService/constructor
class FileLoggerService:	constructor(
		@ILogService logService: ILogService,
		@IInstantiationService private readonly instantiationService: IInstantiationService,
		@IFileService private readonly fileService: IFileService,
	) {
		super(logService.getLevel(), logService.onDidChangeLogLevel);
	}