1 files changed, 19 insertions, 0 deletions

diff --git a/src/test/ui/run-pass/issues/issue-22346.rs b/src/test/ui/run-pass/issues/issue-22346.rs
new file mode 100644
index 00000000000..895b9d222a8
--- /dev/null
+++ b/src/test/ui/run-pass/issues/issue-22346.rs
@@ -0,0 +1,19 @@
+// Copyright 2015 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.
+
+// pretty-expanded FIXME #23616
+
+// This used to cause an ICE because the retslot for the "return" had the wrong type
+fn testcase<'a>() -> Box<Iterator<Item=usize> + 'a> {
+    return Box::new((0..3).map(|i| { return i; }));
+}
+
+fn main() {
+}