1 files changed, 11 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-22346.rs b/src/test/ui/issues/issue-22346.rs
new file mode 100644
index 000000000..5f6d9dcc9
--- /dev/null
+++ b/src/test/ui/issues/issue-22346.rs
@@ -0,0 +1,11 @@
+// run-pass
+#![allow(dead_code)]
+// pretty-expanded FIXME #23616
+
+// This used to cause an ICE because the retslot for the "return" had the wrong type
+fn testcase<'a>() -> Box<dyn Iterator<Item=usize> + 'a> {
+    return Box::new((0..3).map(|i| { return i; }));
+}
+
+fn main() {
+}