The `define_type` function dispatches to `type_fixed_length_list` on the
`InterfaceGenerator` trait for named fixed-length list types like
`type my-array = list<u32, 4>`.

This makes `type_fixed_length_list` a required trait method (no default)
and adds implementations in all backends:

- Rust: generates `pub type Name = [T; N];`
- Go: generates `type Name = [N]Type`
- Markdown: delegates to `type_alias`
- Moonbit: no-op (maps to `FixedArray[T]` natively)
- C, C++, C#: explicit `todo!()` (not yet supported)

Also adds a shared codegen test in `tests/codegen/named-fixed-length-list.wit`
with expected failures for backends that don't yet support this.

* fix(rust): no entry found for key

Fixes #1544

* fix(csharp): add issue-1544.wit fail list

The test issue-1544.wit uses async features (futures) which C# doesn't support yet.

* #1515

dont close the comment`

* add test

* feat: migrate to vanity imports

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

* fix(go): improving documentation

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

---------

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

* move name_interface to preprocess phase; restrict equal types to the current world

* add test

* remove stale failed tests

* include primitive types

* add back wasi-http-borrowed

* comments

* use LiveTypes

* fix

* passes pendingimport test for c#

* passes pendingimport test for c#

* runtime async tests pass

* fixes to make sync functions pass again.  Some tidy

* Remove debug WriteLines

* some clean up

* clippy

* Make streams.wit compile

* For streams use a StreamReader/StreamWriter pair so we can write something.  Maybe we can go back to one pair of classes later.

* add some stream support

* clippy fmt

* start clean up

Fix stub params

* enable another codegen test

* format

* some tidy/refactor

* some tidy/refactor

* refactor

* resolve merge

* clippy

* merge conflict

* remove partial

* remove ws

* remove unsafe

* Apply suggestions from code review

Co-authored-by: Joel Dice <joel.dice@akamai.com>

* merge, enable test

---------

Co-authored-by: Joel Dice <joel.dice@akamai.com>

* Fix use-after-free issue in moonbit

* Make the moonbit test runner work with the latest compiler

* Make existing tests pass including fixed-length list

* fmt

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

* Remove WaitableSet and its global.  Tidy <T> in codegen

* address feedback, comment use of unsafe, refactor repeated code.

* add resolving of equivalent types to pass future-same-type-different-names.wit

* revert Remove/TryRemove change

* Address feedback: remove the && parameter

Add cross-compilation support for riscv64gc-unknown-linux-gnu, following
the same Docker-based pattern as the existing aarch64-linux target.

Fixes #1567

[automatically-tag-and-release-this-commit]

Co-authored-by: Auto Release Process <auto-release-process@users.noreply.github.com>