1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/region-invariant-static-error-reporting.rs b/src/test/ui/compile-fail-migration/region-invariant-static-error-reporting.rs
new file mode 100644
index 00000000000..646ae8183a2
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+++ b/src/test/ui/compile-fail-migration/region-invariant-static-error-reporting.rs
@@ -0,0 +1,32 @@
+// Copyright 2012 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.
+
+// This test checks that the error messages you get for this example
+// at least mention `'a` and `'static`. The precise messages can drift
+// over time, but this test used to exhibit some pretty bogus messages
+// that were not remotely helpful.
+
+// error-pattern:the lifetime 'a
+// error-pattern:the static lifetime
+
+struct Invariant<'a>(Option<&'a mut &'a mut ()>);
+
+fn mk_static() -> Invariant<'static> { Invariant(None) }
+
+fn unify<'a>(x: Option<Invariant<'a>>, f: fn(Invariant<'a>)) {
+    let bad = if x.is_some() {
+        x.unwrap()
+    } else {
+        mk_static()
+    };
+    f(bad);
+}
+
+fn main() {}