intravisit: .expect_item -> .item

Author: Centril

src/librustc/hir/intravisit.rs

@@ -226,7 +226,7 @@ pub trait Visitor<'v>: Sized {
     /// but cannot supply a `Map`; see `nested_visit_map` for advice.
     #[allow(unused_variables)]
     fn visit_nested_item(&mut self, id: ItemId) {
-        let opt_item = self.nested_visit_map().inter().map(|map| map.expect_item(id.id));
+        let opt_item = self.nested_visit_map().inter().map(|map| map.item(id.id));
         if let Some(item) = opt_item {
             self.visit_item(item);
         }

src/librustc/hir/map/mod.rs

@@ -405,6 +405,14 @@ impl<'hir> Map<'hir> {
         self.forest.krate()
     }
 
+    pub fn item(&self, id: HirId) -> &'hir Item<'hir> {
+        self.read(id);
+
+        // N.B., intentionally bypass `self.forest.krate()` so that we
+        // do not trigger a read of the whole krate here
+        self.forest.krate.item(id)
+    }
+
     pub fn trait_item(&self, id: TraitItemId) -> &'hir TraitItem<'hir> {
         self.read(id.hir_id);