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// run-pass
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#![allow(dead_code)]
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// Make sure #1399 stays fixed
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#![feature(box_syntax)]
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struct A { a: Box<isize> }
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pub fn main() {
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fn invoke<F>(f: F) where F: FnOnce() { f(); }
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let k: Box<_> = box 22;
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let _u = A {a: k.clone()};
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invoke(|| println!("{}", k.clone()) )
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}
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