/// Resolve ordinary files before the WASI suffix in each PATH folder.
pub fn resolve_executable(path: std::path::PathBuf) -> Option<std::path::PathBuf> {
    if path.is_file() {
        return Some(path);
    }
    let mut name = path.into_os_string();
    name.push(".wasm");
    let path = std::path::PathBuf::from(name);
    path.is_file().then_some(path)
}
pub(crate) fn resolve_executable_path(
    path: std::path::PathBuf,
    working_dir: &std::path::Path,
) -> std::path::PathBuf {
    let absolute = working_dir.join(&path);
    if absolute.is_file() {
        return path;
    }
    let mut name = absolute.into_os_string();
    name.push(".wasm");
    if std::path::PathBuf::from(name).is_file() {
        let mut name = path.into_os_string();
        name.push(".wasm");
        name.into()
    } else {
        path
    }
}