Use descriptive variant name

Author: varkor

src/librustc/middle/stability.rs

@@ -352,7 +352,7 @@ impl<'a, 'tcx> Visitor<'tcx> for MissingStabilityAnnotations<'a, 'tcx> {
 
             hir::ItemKind::Mod(..) => self.check_missing_stability(i.id, i.span, "module"),
 
-            _ => self.check_missing_stability(i.id, i.span, "node")
+            _ => self.check_missing_stability(i.id, i.span, i.node.descriptive_variant())
         }
 
         intravisit::walk_item(self, i)
@@ -382,7 +382,7 @@ impl<'a, 'tcx> Visitor<'tcx> for MissingStabilityAnnotations<'a, 'tcx> {
     }
 
     fn visit_foreign_item(&mut self, i: &'tcx hir::ForeignItem) {
-        self.check_missing_stability(i.id, i.span, "node");
+        self.check_missing_stability(i.id, i.span, i.node.descriptive_variant());
         intravisit::walk_foreign_item(self, i);
     }
 

src/test/ui/missing/missing-stability.rs

@@ -6,7 +6,7 @@
 #![stable(feature = "stable_test_feature", since = "1.0.0")]
 
 pub fn unmarked() {
-    //~^ ERROR node has missing stability attribute
+    //~^ ERROR function has missing stability attribute
     ()
 }
 
@@ -20,5 +20,5 @@ pub mod foo {
 pub mod bar {
     // #[stable] is not inherited
     pub fn unmarked() {}
-    //~^ ERROR node has missing stability attribute
+    //~^ ERROR function has missing stability attribute
 }

src/test/ui/missing/missing-stability.stderr

@@ -1,13 +1,13 @@
-error: node has missing stability attribute
+error: function has missing stability attribute
   --> $DIR/missing-stability.rs:8:1
    |
 LL | / pub fn unmarked() {
-LL | |     //~^ ERROR node has missing stability attribute
+LL | |     //~^ ERROR function has missing stability attribute
 LL | |     ()
 LL | | }
    | |_^
 
-error: node has missing stability attribute
+error: function has missing stability attribute
   --> $DIR/missing-stability.rs:22:5
    |
 LL |     pub fn unmarked() {}