Tweak stability to not require annotations on impl items and unnamed fields

Author: petrochenkov

src/librustc/middle/stability.rs

@@ -217,7 +217,7 @@ impl<'a, 'tcx, 'v> Visitor<'v> for Annotator<'a, 'tcx> {
 
     fn visit_impl_item(&mut self, ii: &hir::ImplItem) {
         self.annotate(ii.id, true, &ii.attrs, ii.span,
-                      |v| visit::walk_impl_item(v, ii), true);
+                      |v| visit::walk_impl_item(v, ii), false);
     }
 
     fn visit_variant(&mut self, var: &Variant, g: &'v Generics, item_id: NodeId) {
@@ -227,7 +227,7 @@ impl<'a, 'tcx, 'v> Visitor<'v> for Annotator<'a, 'tcx> {
 
     fn visit_struct_field(&mut self, s: &StructField) {
         self.annotate(s.node.id, true, &s.node.attrs, s.span,
-                      |v| visit::walk_struct_field(v, s), true);
+                      |v| visit::walk_struct_field(v, s), !s.node.kind.is_unnamed());
     }
 
     fn visit_foreign_item(&mut self, i: &hir::ForeignItem) {