src/vs/platform/log/common/logIpc.ts/Logger/constructor
class Logger:	constructor(
		private readonly channel: IChannel,
		private readonly file: URI,
		logLevel: LogLevel,
		loggerOptions?: ILoggerOptions,
	) {
		super(loggerOptions?.always);
		this.setLevel(logLevel);
		this.channel.call('createLogger', [file, loggerOptions])
			.then(() => {
				this.doLog(this.buffer);
				this.isLoggerCreated = true;
			});
	}