Provide a machine-processable exception which is not based on strings

When using LibGit2Sharp with a remote repository, sometimes errors occur. Those are throw as LibGit2SharpException. At this point these exceptions can only be distinguished from each other by the exception message.
Is there a way to get certain server responses like a 404 as HTTPStatusCode and not have to extract it from the message? For example, if the URL is incorrect (server exists, but path is not valid), a LibGit2SharpException is thrown which returns "invalid url, missing path" as a message. Here a HTTPStatusCode inside the Exception would be better suited to distinguish between different server responses and to react accordingly.

Version of LibGit2Sharp (release number or SHA1)

V0.26

Operating system(s) tested; .NET runtime tested

Windows 10; .NET 4.6

首先跟踪远程仓库操作收到服务器错误时 LibGit2SharpException 的创建过程，尤其是 issue 中描述的无效 URL 示例。确定如何在不依赖消息的情况下公开机器可处理的 HTTP 状态，并为 404 响应和无效路径响应添加覆盖。完成标准是调用方可以通过程序区分这些响应。