Allow closing the host stream reader handle with error

[rvolosatovs]

There's currently no way to close the host stream reader handle with an error, e.g. when the host is streaming data into some fallible I/O sink, e.g.

wasip3-prototyping/crates/wasi/src/p3/cli/host.rs

Line 84 in de530d7

// TODO: Report the error to the guest

[dicej]

The spec was only updated to enable this last week, so we haven't gotten around to implementing it yet. Agreed that it needs to be done, though. @vados-cosmonic are you planning to work on this at some point?

[vados-cosmonic]

Sure, I can work on this -- will assign!

[dicej]

I believe this is no longer relevant given that we've decided to remove the error argument from the spec for both *.close-readable and *.close-writable.