Tests for issue 5997 failure and success conditions.

Closes #5997.

src/test/compile-fail/issue-5997-enum.rs

@@ -0,0 +1,22 @@
+// Copyright 2014 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.
+
+// error-pattern: missing type param `Z` in the substitution of `Z`
+
+fn f<Z>() -> bool {
+    enum E { V(Z) }
+
+    true
+}
+
+fn main() {
+    let b = f::<int>();
+    assert!(b);
+}

src/test/compile-fail/issue-5997-struct.rs

@@ -0,0 +1,21 @@
+// Copyright 2014 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 f<T>() -> bool {
+    struct S(T); //~ ERROR use of undeclared type name `T`
+    //~^ ERROR attempt to use a type argument out of scope
+
+    true
+}
+
+fn main() {
+    let b = f::<int>();
+    assert!(b);
+}

src/test/run-pass/issue-5997.rs

@@ -0,0 +1,22 @@
+// Copyright 2014 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 f<T>() -> bool {
+    enum E<T> { V(T) }
+
+    struct S<T>(T);
+
+    true
+}
+
+fn main() {
+    let b = f::<int>();
+    assert!(b);
+}