// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![feature(rustc_attrs)]
#![allow(warnings)]

pub fn fail(x: Option<& (Iterator+Send)>) -> Option<&Iterator> {
    // This call used to trigger an LLVM assertion because the return slot had type
    // "Option<&Iterator>"* instead of "Option<&(Iterator+Send)>"*
    inner(x)
}

pub fn inner(x: Option<& (Iterator+Send)>) -> Option<&(Iterator+Send)> {
    x
}

#[rustc_error]
fn main() {} //~ ERROR compilation successful