[FIR JS] Support DYNAMIC_SUPERTYPE

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

@@ -2016,6 +2016,12 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirErrors.DYNAMIC_SUPERTYPE) { firDiagnostic ->
+        DynamicSupertypeImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
     add(FirErrors.DYNAMIC_UPPER_BOUND) { firDiagnostic ->
         DynamicUpperBoundImpl(
             firDiagnostic as KtPsiDiagnostic,

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

@@ -1431,6 +1431,10 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = MisplacedTypeParameterConstraints::class
     }
 
+    abstract class DynamicSupertype : KtFirDiagnostic<KtTypeReference>() {
+        override val diagnosticClass get() = DynamicSupertype::class
+    }
+
     abstract class DynamicUpperBound : KtFirDiagnostic<KtTypeReference>() {
         override val diagnosticClass get() = DynamicUpperBound::class
     }

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

@@ -1722,6 +1722,11 @@ internal class MisplacedTypeParameterConstraintsImpl(
     override val token: KtLifetimeToken,
 ) : KtFirDiagnostic.MisplacedTypeParameterConstraints(), KtAbstractFirDiagnostic<KtTypeParameter>
 
+internal class DynamicSupertypeImpl(
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.DynamicSupertype(), KtAbstractFirDiagnostic<KtTypeReference>
+
 internal class DynamicUpperBoundImpl(
     override val firDiagnostic: KtPsiDiagnostic,
     override val token: KtLifetimeToken,