JsStaticOnOverrideImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirSyntaxErrors.SYNTAX) { firDiagnostic ->
        SyntaxImpl(
            firDiagnostic.a,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirWebCommonErrors.NESTED_EXTERNAL_DECLARATION) { firDiagnostic ->

internal class JsStaticOnOverrideImpl(
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KtFirDiagnostic.JsStaticOnOverride

internal class SyntaxImpl(
    override val message: String,
    firDiagnostic: KtPsiDiagnostic,
    token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<PsiElement>(firDiagnostic, token), KtFirDiagnostic.Syntax