1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-13167.rs b/src/test/ui/issues/issue-13167.rs
new file mode 100644
index 000000000..8584c98de
--- /dev/null
+++ b/src/test/ui/issues/issue-13167.rs
@@ -0,0 +1,22 @@
+// check-pass
+// pretty-expanded FIXME #23616
+
+use std::slice;
+
+pub struct PhfMapEntries<'a, T: 'a> {
+    iter: slice::Iter<'a, (&'static str, T)>,
+}
+
+impl<'a, T> Iterator for PhfMapEntries<'a, T> {
+    type Item = (&'static str, &'a T);
+
+    fn next(&mut self) -> Option<(&'static str, &'a T)> {
+        self.iter.by_ref().map(|&(key, ref value)| (key, value)).next()
+    }
+
+    fn size_hint(&self) -> (usize, Option<usize>) {
+        self.iter.size_hint()
+    }
+}
+
+fn main() {}