Return wrapped network.ErrReset error type with more info

[MarcoPolo]

Right now we replace specific stream errors with network.ErrReset (example). We should instead return a new error type that unwraps to a network.ErrReset with a .Unwrap() []error method and includes addition error information gleaned from the transport. This is at least a problem in the WebTransport and QUIC transports. Note that we probably want the multi-error return version and return both a network.ErrReset and the underlying stream error.

[Khwahish29]

I'd like to take this up!
Please assign this to me

[marten-seemann]

with a .Is method

The better way to do this is using Unwrap. Took me a while to figure this out. Have a look at the quic-go errors, especially the TransportError.

[MarcoPolo]

Thank you @marten-seemann. That makes sense. Here's an example for reference: https://github.com/lucas-clemente/quic-go/blob/8f27760e60b6c743ca89684654c9d722e4f804a4/internal/qerr/errors.go#L51

[MarcoPolo]

@Khwahish29 . Sounds good. Could you please either wait until #2927 is merged or base your changes on that PR?