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// Test closure that takes two references and is supposed to return
// the first, but actually returns the second. This should fail within
// the closure.
// compile-flags:-Zverbose
#![feature(rustc_attrs)]
#[rustc_regions]
fn test() {
expect_sig(|a, b| b); // ought to return `a`
//~^ ERROR
}
fn expect_sig<F>(f: F) -> F
where F: for<'a> FnMut(&'a i32, &i32) -> &'a i32
{
f
}
fn deref(_p: &i32) { }
fn main() { }
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