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//@ run-pass
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#![allow(dead_code)]
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#![allow(non_camel_case_types)]
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//@ pretty-expanded FIXME #23616
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enum ast<'a> {
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num(usize),
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add(&'a ast<'a>, &'a ast<'a>)
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}
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fn mk_add_ok<'r>(x: &'r ast<'r>, y: &'r ast<'r>) -> ast<'r> {
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ast::add(x, y)
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}
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pub fn main() {
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}
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