Add licenses.

src/librustc_data_structures/bitvec.rs

@@ -1,3 +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.
+
 use std::iter;
 
 /// A very simple BitVector type.

src/librustc_data_structures/graph/test.rs

@@ -1,3 +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.
+
 use graph::*;
 use std::fmt::Debug;
 

src/librustc_data_structures/lib.rs

@@ -27,7 +27,7 @@
       html_root_url = "http://doc.rust-lang.org/nightly/")]
 
 #![feature(rustc_private)]
-#![feature(test)]
+#![cfg_attr(test, feature(test))]
 
 #[macro_use] extern crate log;
 extern crate serialize as rustc_serialize; // used by deriving

src/librustc_data_structures/unify/test.rs

@@ -1,3 +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.
+
 #![allow(non_snake_case)]
 
 extern crate test;