Add test for #24204

src/test/compile-fail/issue-24204.rs

@@ -0,0 +1,27 @@
+// Copyright 2016 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.
+
+#![allow(dead_code)]
+
+trait MultiDispatch<T> {
+    type O;
+}
+
+trait Trait: Sized {
+    type A: MultiDispatch<Self::B, O = Self>;
+    type B;
+
+    fn new<U>(u: U) -> <Self::A as MultiDispatch<U>>::O where Self::A : MultiDispatch<U>;
+}
+
+fn test<T: Trait<B=i32>>(b: i32) -> T where T::A: MultiDispatch<i32> { T::new(b) }
+//~^ ERROR type mismatch resolving
+
+fn main() {}