1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/higher-ranked/trait-bounds/hrtb-debruijn-object-types-in-closures.rs b/tests/ui/higher-ranked/trait-bounds/hrtb-debruijn-object-types-in-closures.rs
new file mode 100644
index 000000000..8431226a3
--- /dev/null
+++ b/tests/ui/higher-ranked/trait-bounds/hrtb-debruijn-object-types-in-closures.rs
@@ -0,0 +1,16 @@
+// run-pass
+#![allow(dead_code)]
+// pretty-expanded FIXME #23616
+
+trait Typer<'tcx> {
+    fn method(&self, data: &'tcx isize) -> &'tcx isize { data }
+    fn dummy(&self) { }
+}
+
+fn g<F>(_: F) where F: FnOnce(&dyn Typer) {}
+
+fn h() {
+    g(|typer| typer.dummy())
+}
+
+fn main() { }