fn a(b: *const fn (*const u8) void) void {
    _ = b;
}
fn c(d: u8) void {
    _ = d;
}
export fn entry() void {
    a(c);
}

// error
//
// :8:7: error: expected type '*const fn (*const u8) void', found '*const fn (u8) void'
// :8:7: note: pointer type child 'fn (u8) void' cannot cast into pointer type child 'fn (*const u8) void'
// :8:7: note: parameter 0 'u8' cannot cast into '*const u8'
