1 files changed, 11 insertions, 0 deletions
diff --git a/tests/ui/closures/old-closure-fn-coerce.rs b/tests/ui/closures/old-closure-fn-coerce.rs
new file mode 100644
index 000000000..d993ad994
--- /dev/null
+++ b/tests/ui/closures/old-closure-fn-coerce.rs
@@ -0,0 +1,11 @@
+// run-pass
+#![allow(unused_braces)]
+
+fn force<F>(f: F) -> isize where F: FnOnce() -> isize { return f(); }
+
+pub fn main() {
+    fn f() -> isize { return 7; }
+    assert_eq!(force(f), 7);
+    let g = {||force(f)};
+    assert_eq!(g(), 7);
+}