From 254325cee0306e62735c0b69a9ff107b423ab544 Mon Sep 17 00:00:00 2001
From: Andrew Paseltiner <apaseltiner@gmail.com>
Date: Thu, 10 Sep 2015 16:02:00 -0400
Subject: [PATCH] Add test for #17994

Closes #17994.
---
 src/test/compile-fail/issue-17994.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 src/test/compile-fail/issue-17994.rs

diff --git a/src/test/compile-fail/issue-17994.rs b/src/test/compile-fail/issue-17994.rs
new file mode 100644
index 0000000000000..fcbc08327b9fc
--- /dev/null
+++ b/src/test/compile-fail/issue-17994.rs
@@ -0,0 +1,13 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+trait Tr {}
+type Huh<T> where T: Tr = isize; //~ ERROR type parameter `T` is unused
+fn main() {}