1 files changed, 16 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-20396.rs b/tests/ui/issues/issue-20396.rs
new file mode 100644
index 00000000000..4a34f8b385f
--- /dev/null
+++ b/tests/ui/issues/issue-20396.rs
@@ -0,0 +1,16 @@
+// check-pass
+// pretty-expanded FIXME #23616
+
+#![allow(dead_code)]
+
+trait Foo<T> {
+    fn noop(&self, _: T);
+}
+
+enum Bar<T> { Bla(T) }
+
+struct Baz<'a> {
+    inner: dyn for<'b> Foo<Bar<&'b ()>> + 'a,
+}
+
+fn main() {}