1 files changed, 9 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-17361.rs b/tests/ui/issues/issue-17361.rs
new file mode 100644
index 000000000..e97fc3afd
--- /dev/null
+++ b/tests/ui/issues/issue-17361.rs
@@ -0,0 +1,9 @@
+// run-pass
+// Test that astconv doesn't forget about mutability of &mut str
+
+// pretty-expanded FIXME #23616
+
+fn main() {
+    fn foo<T: ?Sized>(_: &mut T) {}
+    let _f: fn(&mut str) = foo;
+}