[FIR] Add REPEATED_ANNOTATION, REPEATED_ANNOTATION_WARNING

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDataClassConverters.kt

@@ -859,6 +859,18 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirErrors.REPEATED_ANNOTATION) { firDiagnostic ->
+        RepeatedAnnotationImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirErrors.REPEATED_ANNOTATION_WARNING) { firDiagnostic ->
+        RepeatedAnnotationWarningImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
     add(FirErrors.EXPERIMENTAL_API_USAGE) { firDiagnostic ->
         ExperimentalApiUsageImpl(
             firDiagnostic.a,

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnostics.kt

@@ -618,6 +618,14 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = InapplicableFileTarget::class
     }
 
+    abstract class RepeatedAnnotation : KtFirDiagnostic<KtAnnotationEntry>() {
+        override val diagnosticClass get() = RepeatedAnnotation::class
+    }
+
+    abstract class RepeatedAnnotationWarning : KtFirDiagnostic<KtAnnotationEntry>() {
+        override val diagnosticClass get() = RepeatedAnnotationWarning::class
+    }
+
     abstract class ExperimentalApiUsage : KtFirDiagnostic<PsiElement>() {
         override val diagnosticClass get() = ExperimentalApiUsage::class
         abstract val optInMarkerFqName: FqName

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnosticsImpl.kt

@@ -991,6 +991,20 @@ internal class InapplicableFileTargetImpl(
     override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
 }
 
+internal class RepeatedAnnotationImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.RepeatedAnnotation(), KtAbstractFirDiagnostic<KtAnnotationEntry> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
+internal class RepeatedAnnotationWarningImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.RepeatedAnnotationWarning(), KtAbstractFirDiagnostic<KtAnnotationEntry> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
 internal class ExperimentalApiUsageImpl(
     override val optInMarkerFqName: FqName,
     override val message: String,