auto merge of #8869 : alexcrichton/rust/issue-8847-fix-unused, r=huonw

Closes #8847

Author: bors

src/librustc/middle/resolve.rs

@@ -2585,11 +2585,13 @@ impl Resolver {
                 debug!("(resolving glob import) ... for value target");
                 dest_import_resolution.value_target =
                     Some(Target(containing_module, name_bindings));
+                dest_import_resolution.value_id = id;
             }
             if name_bindings.defined_in_public_namespace(TypeNS) {
                 debug!("(resolving glob import) ... for type target");
                 dest_import_resolution.type_target =
                     Some(Target(containing_module, name_bindings));
+                dest_import_resolution.type_id = id;
             }
         };
 

src/test/compile-fail/lint-unused-import-tricky-globs.rs

@@ -0,0 +1,84 @@
+// Copyright 2013 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)];
+
+mod A {
+    pub fn p() {}
+}
+mod B {
+    pub fn p() {}
+}
+
+mod C {
+    pub fn q() {}
+}
+mod D {
+    pub fn q() {}
+}
+
+mod E {
+    pub fn r() {}
+}
+mod F {
+    pub fn r() {}
+}
+
+mod G {
+    pub fn s() {}
+    pub fn t() {}
+}
+mod H {
+    pub fn s() {}
+}
+
+mod I {
+    pub fn u() {}
+    pub fn v() {}
+}
+mod J {
+    pub fn u() {}
+    pub fn v() {}
+}
+
+mod K {
+    pub fn w() {}
+}
+mod L {
+    pub fn w() {}
+}
+
+mod m {
+   use A::p; //~ ERROR: unused import
+   use B::p;
+   use C::q; //~ ERROR: unused import
+   use D::*;
+   use E::*; //~ ERROR: unused import
+   use F::r;
+   use G::*;
+   use H::*;
+   use I::*;
+   use J::v;
+   use K::*; //~ ERROR: unused import
+   use L::*;
+
+   #[main]
+   fn my_main() {
+       p();
+       q();
+       r();
+       s();
+       t();
+       u();
+       v();
+       w();
+   }
+}
+