[FIR] Add support for JVM_STATIC_ON_EXTERNAL_IN_INTERFACE diagnostic

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

@@ -3694,6 +3694,12 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirJvmErrors.JVM_STATIC_ON_EXTERNAL_IN_INTERFACE) { firDiagnostic ->
+        JvmStaticOnExternalInInterfaceImpl(
+            firDiagnostic as FirPsiDiagnostic,
+            token,
+        )
+    }
     add(FirJvmErrors.INAPPLICABLE_JVM_NAME) { firDiagnostic ->
         InapplicableJvmNameImpl(
             firDiagnostic as FirPsiDiagnostic,

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

@@ -2570,6 +2570,10 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = JvmStaticOnConstOrJvmField::class
     }
 
+    abstract class JvmStaticOnExternalInInterface : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = JvmStaticOnExternalInInterface::class
+    }
+
     abstract class InapplicableJvmName : KtFirDiagnostic<PsiElement>() {
         override val diagnosticClass get() = InapplicableJvmName::class
     }

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

@@ -4173,6 +4173,13 @@ internal class JvmStaticOnConstOrJvmFieldImpl(
     override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
 }
 
+internal class JvmStaticOnExternalInInterfaceImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.JvmStaticOnExternalInInterface(), KtAbstractFirDiagnostic<PsiElement> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
 internal class InapplicableJvmNameImpl(
     firDiagnostic: FirPsiDiagnostic,
     override val token: ValidityToken,