9a1ce1a272
this is unfortunate but the poll_oneoff test insists on polling on stdio handles. to undo this temporary fix later, lets rewrite the test to open some regular files from the scratch directory and poll on them instead.
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