1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/dyn-trait-compatibility.rs b/src/test/ui/compile-fail-migration/dyn-trait-compatibility.rs
new file mode 100644
index 00000000000..454b6d2f566
--- /dev/null
+++ b/src/test/ui/compile-fail-migration/dyn-trait-compatibility.rs
@@ -0,0 +1,24 @@
+// Copyright 2017 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.
+
+type A0 = dyn;
+//~^ ERROR cannot find type `dyn` in this scope
+type A1 = dyn::dyn;
+//~^ ERROR Use of undeclared type or module `dyn`
+type A2 = dyn<dyn, dyn>;
+//~^ ERROR cannot find type `dyn` in this scope
+//~| ERROR cannot find type `dyn` in this scope
+//~| ERROR cannot find type `dyn` in this scope
+type A3 = dyn<<dyn as dyn>::dyn>;
+//~^ ERROR cannot find type `dyn` in this scope
+//~| ERROR cannot find type `dyn` in this scope
+//~| ERROR Use of undeclared type or module `dyn`
+
+fn main() {}