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diff --git a/src/test/run-pass/traits/trait-alias-syntax.rs b/src/test/run-pass/traits/trait-alias-syntax.rs
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+// Copyright 2018 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(trait_alias)]
+
+trait SimpleAlias = Default;
+trait GenericAlias<T> = Iterator<Item = T>;
+trait Partial<T> = IntoIterator<Item = T>;
+trait SpecificAlias = GenericAlias<i32>;
+trait PartialEqRef<'a, T: 'a> = PartialEq<&'a T>;
+trait StaticAlias = 'static;
+
+trait Things<T> {}
+trait Romeo {}
+#[allow(dead_code)]
+struct The<T>(T);
+#[allow(dead_code)]
+struct Fore<T>(T);
+impl<T, U> Things<T> for The<U> {}
+impl<T> Romeo for Fore<T> {}
+
+trait WithWhere<Art, Thou> = Romeo + Romeo where Fore<(Art, Thou)>: Romeo;
+trait BareWhere<Wild, Are> = where The<Wild>: Things<Are>;
+
+fn main() {}