1 files changed, 15 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-13665.rs b/tests/ui/issues/issue-13665.rs
new file mode 100644
index 00000000000..a3843c65034
--- /dev/null
+++ b/tests/ui/issues/issue-13665.rs
@@ -0,0 +1,15 @@
+// run-pass
+// pretty-expanded FIXME #23616
+
+fn foo<'r>() {
+  let maybe_value_ref: Option<&'r u8> = None;
+
+  let _ = maybe_value_ref.map(|& ref v| v);
+  let _ = maybe_value_ref.map(|& ref v| -> &'r u8 {v});
+  let _ = maybe_value_ref.map(|& ref v: &'r u8| -> &'r u8 {v});
+  let _ = maybe_value_ref.map(|& ref v: &'r u8| {v});
+}
+
+fn main() {
+  foo();
+}