migrate: redundant_semicolon.rs

compiler/rustc_lint/src/lints.rs

@@ -6,6 +6,14 @@ use rustc_span::{Span, Symbol};
 
 use crate::LateContext;
 
+#[derive(LintDiagnostic)]
+#[diag(lint_redundant_semicolons)]
+pub struct RedundantSemicolonsDiag {
+    pub multiple: bool,
+    #[suggestion(code = "", applicability = "maybe-incorrect")]
+    pub suggestion: Span,
+}
+
 pub struct DropTraitConstraintsDiag<'a> {
     pub predicate: Predicate<'a>,
     pub tcx: TyCtxt<'a>,

compiler/rustc_lint/src/redundant_semicolon.rs

@@ -1,6 +1,7 @@
-use crate::{EarlyContext, EarlyLintPass, LintContext};
+#![deny(rustc::untranslatable_diagnostic)]
+#![deny(rustc::diagnostic_outside_of_impl)]
+use crate::{lints::RedundantSemicolonsDiag, EarlyContext, EarlyLintPass, LintContext};
 use rustc_ast::{Block, StmtKind};
-use rustc_errors::{fluent, Applicability};
 use rustc_span::Span;
 
 declare_lint! {
@@ -48,18 +49,10 @@ fn maybe_lint_redundant_semis(cx: &EarlyContext<'_>, seq: &mut Option<(Span, boo
             return;
         }
 
-        cx.struct_span_lint(
+        cx.emit_spanned_lint(
             REDUNDANT_SEMICOLONS,
             span,
-            fluent::lint_redundant_semicolons,
+            RedundantSemicolonsDiag { multiple, suggestion: span },
-            |lint| {
-                lint.set_arg("multiple", multiple).span_suggestion(
-                    span,
-                    fluent::suggestion,
-                    "",
-                    Applicability::MaybeIncorrect,
-                )
-            },
         );
     }
 }