Generate blanket implementations for reexported items as well

src/librustdoc/clean/blanket_impl.rs

@@ -65,7 +65,6 @@ impl<'a, 'tcx, 'rcx, 'cstore> BlanketImplFinder <'a, 'tcx, 'rcx, 'cstore> {
             return impls;
         }
         let ty = self.cx.tcx.type_of(def_id);
-        if self.cx.access_levels.borrow().is_doc_reachable(def_id) || ty.is_primitive() {
         let generics = self.cx.tcx.generics_of(def_id);
         let real_name = name.clone().map(|name| Ident::from_str(&name));
         let param_env = self.cx.tcx.param_env(def_id);
@@ -157,7 +156,6 @@ impl<'a, 'tcx, 'rcx, 'cstore> BlanketImplFinder <'a, 'tcx, 'rcx, 'cstore> {
                 });
             });
         }
-        }
         impls
     }
 }

src/test/rustdoc/blanket-reexport-item.rs

@@ -0,0 +1,18 @@
+// Copyright 2018 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.
+
+#![crate_name = "foo"]
+
+// @has foo/struct.S.html '//h3[@id="impl-Into"]//code' 'impl<T, U> Into for T'
+pub struct S2 {}
+mod m {
+    pub struct S {}
+}
+pub use m::*;