wasi-c2 does not have a virtfs yet, and when it does we'll design a better test harness also fix prestat get: i was reporting the wrong error
This is the test-programs crate, which builds and runs whole programs
compiled to wasm32-wasi.
To actually run these tests, the test-programs feature must be enabled, e.g.:
cargo test --features test-programs/test_programs --package test-programs