useSiteSession: FirSession,
    annotationContainer: FirAnnotationContainer = firSymbol.fir,
): Boolean {
    return if (firSymbol.isFromCompilerRequiredAnnotationsPhase(classId, useSiteSession)) {
        // this loop by index is required to avoid possible ConcurrentModificationException
        val annotations = annotationContainer.resolvedCompilerRequiredAnnotations(firSymbol)
        for (index in annotations.indices) {

            firFunctionDeclarations.add(function)
            super.visitFunction(function)
        }

        override fun visitLoop(loop: FirLoop) {
            firLoopStatements.add(loop)
            super.visitLoop(loop)
        }

        override fun visitReturnExpression(returnExpression: FirReturnExpression) {

            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.BREAK_OR_CONTINUE_OUTSIDE_A_LOOP) { firDiagnostic ->
        BreakOrContinueOutsideALoopImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.NOT_A_LOOP_LABEL) { firDiagnostic ->
        NotALoopLabelImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,