Remove AttributeLintKind::IgnoredDiagnosticOption variant

compiler/rustc_attr_parsing/src/attributes/diagnostic/mod.rs

@@ -19,8 +19,8 @@
 
 use crate::context::{AcceptContext, Stage};
 use crate::errors::{
-    DisallowedPlaceholder, DisallowedPositionalArgument, InvalidFormatSpecifier,
-    MalFormedDiagnosticAttributeLint, WrappedParserError,
+    DisallowedPlaceholder, DisallowedPositionalArgument, IgnoredDiagnosticOption,
+    InvalidFormatSpecifier, MalFormedDiagnosticAttributeLint, WrappedParserError,
 };
 use crate::parser::{ArgParser, MetaItemListParser, MetaItemOrLitParser, MetaItemParser};
 
@@ -116,12 +116,12 @@ fn merge<T, S: Stage>(
     match (first, later) {
         (Some(_) | None, None) => {}
         (Some((first_span, _)), Some((later_span, _))) => {
-            cx.emit_lint(
+            let first_span = *first_span;
+            cx.emit_dyn_lint(
                 MALFORMED_DIAGNOSTIC_ATTRIBUTES,
-                AttributeLintKind::IgnoredDiagnosticOption {
-                    first_span: *first_span,
-                    later_span,
-                    option_name,
+                move |dcx, level| {
+                    IgnoredDiagnosticOption { first_span, later_span, option_name }
+                        .into_diag(dcx, level)
                 },
                 later_span,
             );
@@ -220,13 +220,14 @@ fn parse_directive_items<'p, S: Stage>(
         }}
 
         macro duplicate($name: ident, $($first_span:tt)*) {{
-            cx.emit_lint(
+            let first_span = $($first_span)*;
+            cx.emit_dyn_lint(
                 MALFORMED_DIAGNOSTIC_ATTRIBUTES,
-                AttributeLintKind::IgnoredDiagnosticOption {
-                    first_span: $($first_span)*,
+                move |dcx, level| IgnoredDiagnosticOption {
+                    first_span,
                     later_span: span,
                     option_name: $name,
-                },
+                }.into_diag(dcx, level),
                 span,
             );
         }}

compiler/rustc_attr_parsing/src/errors.rs

@@ -382,3 +382,13 @@ pub(crate) struct WrappedParserError<'a> {
     pub span: Span,
     pub label: &'a str,
 }
+
+#[derive(Diagnostic)]
+#[diag("`{$option_name}` is ignored due to previous definition of `{$option_name}`")]
+pub(crate) struct IgnoredDiagnosticOption {
+    pub option_name: Symbol,
+    #[label("`{$option_name}` is first declared here")]
+    pub first_span: Span,
+    #[label("`{$option_name}` is later redundantly declared here")]
+    pub later_span: Span,
+}

compiler/rustc_lint/src/early/diagnostics.rs

@@ -43,10 +43,6 @@ fn into_diag(self, dcx: DiagCtxtHandle<'a>, level: Level) -> Diag<'a, ()> {
                     .into_diag(dcx, level)
             }
 
-            &AttributeLintKind::IgnoredDiagnosticOption { option_name, first_span, later_span } => {
-                lints::IgnoredDiagnosticOption { option_name, first_span, later_span }
-                    .into_diag(dcx, level)
-            }
             &AttributeLintKind::MissingOptionsForDiagnosticAttribute { attribute, options } => {
                 lints::MissingOptionsForDiagnosticAttribute { attribute, options }
                     .into_diag(dcx, level)

compiler/rustc_lint/src/lints.rs

@@ -3282,16 +3282,6 @@ fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) {
     }
 }
 
-#[derive(Diagnostic)]
-#[diag("`{$option_name}` is ignored due to previous definition of `{$option_name}`")]
-pub(crate) struct IgnoredDiagnosticOption {
-    pub option_name: Symbol,
-    #[label("`{$option_name}` is first declared here")]
-    pub first_span: Span,
-    #[label("`{$option_name}` is later redundantly declared here")]
-    pub later_span: Span,
-}
-
 #[derive(Diagnostic)]
 #[diag("missing options for `{$attribute}` attribute")]
 #[help("{$options}")]

compiler/rustc_lint_defs/src/lib.rs

@@ -656,7 +656,6 @@ pub enum DeprecatedSinceKind {
 pub enum AttributeLintKind {
     UnexpectedCfgName((Symbol, Span), Option<(Symbol, Span)>),
     UnexpectedCfgValue((Symbol, Span), Option<(Symbol, Span)>),
-    IgnoredDiagnosticOption { option_name: Symbol, first_span: Span, later_span: Span },
     MissingOptionsForDiagnosticAttribute { attribute: &'static str, options: &'static str },
     NonMetaItemDiagnosticAttribute,
 }