Port #[link_ordinal] to the new attribute parsing infrastructure.

Author: Periodic1911

compiler/rustc_parse/src/validate_attr.rs

@@ -266,59 +266,7 @@ pub fn check_builtin_meta_item(
     template: AttributeTemplate,
     deny_unsafety: bool,
 ) {
-    if !is_attr_template_compatible(&template, &meta.kind) {
-        emit_malformed_attribute(psess, style, meta.span, name, template);
-    }
-
-    if deny_unsafety {
-        deny_builtin_meta_unsafety(psess, meta);
-    }
-}
-
-fn emit_malformed_attribute(
-    psess: &ParseSess,
-    style: ast::AttrStyle,
-    span: Span,
-    name: Symbol,
-    template: AttributeTemplate,
-) {
-    // attrs with new parsers are locally validated so excluded here
-    if matches!(
-        name,
-        sym::inline
-            | sym::may_dangle
-            | sym::rustc_as_ptr
-            | sym::rustc_pub_transparent
-            | sym::rustc_const_stable_indirect
-            | sym::rustc_force_inline
-            | sym::rustc_confusables
-            | sym::rustc_skip_during_method_dispatch
-            | sym::rustc_pass_by_value
-            | sym::repr
-            | sym::align
-            | sym::deprecated
-            | sym::optimize
-            | sym::cold
-            | sym::target_feature
-            | sym::rustc_allow_const_fn_unstable
-            | sym::naked
-            | sym::no_mangle
-            | sym::non_exhaustive
-            | sym::path
-            | sym::ignore
-            | sym::must_use
-            | sym::track_caller
-            | sym::link_ordinal
-            | sym::link_name
-            | sym::export_name
-            | sym::rustc_macro_transparency
-            | sym::link_section
-            | sym::rustc_layout_scalar_valid_range_start
-            | sym::rustc_layout_scalar_valid_range_end
-            | sym::no_implicit_prelude
-    ) {
-        return;
-        // attrs with new parsers are locally validated so excluded here
+    if !is_attr_template_compatible(&template, &meta.kind) {// attrs with new parsers are locally validated so excluded here
         if matches!(
             name,
             sym::inline
@@ -345,6 +293,7 @@ fn emit_malformed_attribute(
                 | sym::must_use
                 | sym::track_caller
                 | sym::link_name
+                | sym::link_ordinal
                 | sym::export_name
                 | sym::rustc_macro_transparency
                 | sym::link_section