token,
        )
    }
    add(FirErrors.UNNECESSARY_NOT_NULL_ASSERTION) { firDiagnostic ->
        UnnecessaryNotNullAssertionImpl(
            firSymbolBuilder.typeBuilder.buildKtType(firDiagnostic.a),
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.NOT_NULL_ASSERTION_ON_LAMBDA_EXPRESSION) { firDiagnostic ->
        NotNullAssertionOnLambdaExpressionImpl(