Rename hir_attrs query as hir_attr_map.

To make room for the moving of `Map::attrs` to `TyCtxt::hir_attrs` in
the next commit. (It makes sense to rename the query, because it has
many fewer uses than the method.)

compiler/rustc_middle/src/hir/map.rs

@@ -908,7 +908,7 @@ impl<'hir> Map<'hir> {
     /// Given a node ID, gets a list of attributes associated with the AST
     /// corresponding to the node-ID.
     pub fn attrs(self, id: HirId) -> &'hir [Attribute] {
-        self.tcx.hir_attrs(id.owner).get(id.local_id)
+        self.tcx.hir_attr_map(id.owner).get(id.local_id)
     }
 
     /// Gets the span of the definition of the specified HIR node.

compiler/rustc_middle/src/hir/mod.rs

@@ -202,7 +202,7 @@ pub fn provide(providers: &mut Providers) {
             }
         })
     };
-    providers.hir_attrs = |tcx, id| {
+    providers.hir_attr_map = |tcx, id| {
         tcx.hir_crate(()).owners[id.def_id].as_owner().map_or(AttributeMap::EMPTY, |o| &o.attrs)
     };
     providers.def_span = |tcx, def_id| tcx.hir().span(tcx.local_def_id_to_hir_id(def_id));

compiler/rustc_middle/src/query/mod.rs

@@ -198,7 +198,7 @@ rustc_queries! {
     ///
     /// This can be conveniently accessed by methods on `tcx.hir()`.
     /// Avoid calling this query directly.
-    query hir_attrs(key: hir::OwnerId) -> &'tcx hir::AttributeMap<'tcx> {
+    query hir_attr_map(key: hir::OwnerId) -> &'tcx hir::AttributeMap<'tcx> {
         desc { |tcx| "getting HIR owner attributes in `{}`", tcx.def_path_str(key) }
         feedable
     }

compiler/rustc_middle/src/ty/context.rs

@@ -1299,7 +1299,7 @@ impl<'tcx> TyCtxtFeed<'tcx, LocalDefId> {
             ),
             bodies,
         })));
-        self.feed_owner_id().hir_attrs(attrs);
+        self.feed_owner_id().hir_attr_map(attrs);
     }
 }