auto merge of #6282 : alexcrichton/rust/issue-5517-add-test, r=thestinger

It appears the cause of #5517 was fixed in 0dc6c414, so adding a test so the issue can be closed.

src/test/run-pass/issue-5517.rs

@@ -0,0 +1,14 @@
+// Copyright 2013 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.
+
+fn main() {
+    let box1 = @mut 42;
+    let _x = *(&mut *box1) == 42 || *(&mut *box1) == 31337;
+}