Rename doc(primitive) into rustc_doc_primitive

compiler/rustc_feature/src/active.rs

@@ -225,7 +225,7 @@ declare_features! (
     (active, rustc_allow_const_fn_unstable, "1.49.0", Some(69399), None),
     /// Allows using compiler's own crates.
     (active, rustc_private, "1.0.0", Some(27812), None),
-    /// Allows using internal rustdoc features like `doc(primitive)` or `doc(keyword)`.
+    /// Allows using internal rustdoc features like `doc(keyword)`.
     (active, rustdoc_internals, "1.58.0", Some(90418), None),
     /// Allows using the `rustdoc::missing_doc_code_examples` lint
     (active, rustdoc_missing_doc_code_examples, "1.31.0", Some(101730), None),

compiler/rustc_feature/src/builtin_attrs.rs

@@ -778,6 +778,10 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
         definition of a trait, it's currently in experimental form and should be changed before \
         being exposed outside of the std"
     ),
+    rustc_attr!(
+        rustc_doc_primitive, Normal, template!(NameValueStr: "primitive name"), ErrorFollowing,
+        r#"`rustc_doc_primitive` is a rustc internal attribute"#,
+    ),
 
     // ==========================================================================
     // Internal attributes, Testing:

compiler/rustc_passes/messages.ftl

@@ -148,9 +148,6 @@ passes_doc_test_unknown =
 passes_doc_test_takes_list =
     `#[doc(test(...)]` takes a list of attributes
 
-passes_doc_primitive =
-    `doc(primitive)` should never have been stable
-
 passes_doc_cfg_hide_takes_list =
     `#[doc(cfg_hide(...)]` takes a list of attributes
 

compiler/rustc_passes/src/check_attr.rs

@@ -1109,17 +1109,6 @@ impl CheckAttrVisitor<'_> {
                             }
                         }
 
-                        sym::primitive => {
-                            if !self.tcx.features().rustdoc_internals {
-                                self.tcx.emit_spanned_lint(
-                                    INVALID_DOC_ATTRIBUTES,
-                                    hir_id,
-                                    i_meta.span,
-                                    errors::DocPrimitive,
-                                );
-                            }
-                        }
-
                         _ => {
                             let path = rustc_ast_pretty::pprust::path_to_string(&i_meta.path);
                             if i_meta.has_name(sym::spotlight) {

compiler/rustc_passes/src/errors.rs

@@ -288,10 +288,6 @@ pub struct DocTestTakesList;
 #[diag(passes_doc_cfg_hide_takes_list)]
 pub struct DocCfgHideTakesList;
 
-#[derive(LintDiagnostic)]
-#[diag(passes_doc_primitive)]
-pub struct DocPrimitive;
-
 #[derive(LintDiagnostic)]
 #[diag(passes_doc_test_unknown_any)]
 pub struct DocTestUnknownAny {

compiler/rustc_span/src/symbol.rs

@@ -1245,6 +1245,7 @@ symbols! {
         rustc_diagnostic_macros,
         rustc_dirty,
         rustc_do_not_const_check,
+        rustc_doc_primitive,
         rustc_dummy,
         rustc_dump_env_program_clauses,
         rustc_dump_program_clauses,