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//@ run-pass
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// Test that overloaded calls work with zero arity closures
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//@ pretty-expanded FIXME #23616
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fn main() {
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let functions: [Box<dyn Fn() -> Option<()>>; 1] = [Box::new(|| None)];
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let _: Option<Vec<()>> = functions.iter().map(|f| (*f)()).collect();
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}
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