Address comments

src/libsyntax/parse/parser.rs

@@ -6999,7 +6999,7 @@ impl<'a> Parser<'a> {
 
         // Verify whether we have encountered a struct or method definition where the user forgot to
         // add the `struct` or `fn` keyword after writing `pub`: `pub S {}`
-        if visibility.node.is_public() &&
+        if visibility.node.is_pub() &&
             self.check_ident() &&
             self.look_ahead(1, |t| *t != token::Not)
         {