Apply lint attrs to individual "use" declarations

Fixes #10534

src/test/compile-fail/lint-directives-on-use-items-issue-10534.rs

@@ -0,0 +1,33 @@
+// 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.
+
+#![deny(unused_imports)]
+
+// The aim of this test is to ensure that deny/allow/warn directives
+// are applied to individual "use" statements instead of silently
+// ignored.
+
+#[allow(dead_code)]
+mod a { pub static x: int = 3; pub static y: int = 4; }
+
+mod b {
+    use a::x; //~ ERROR: unused import
+    #[allow(unused_imports)]
+    use a::y; // no error here
+}
+
+#[allow(unused_imports)]
+mod c {
+    use a::x;
+    #[deny(unused_imports)]
+    use a::y; //~ ERROR: unused import
+}
+
+fn main() {}