*
     * @param receiverExpression a qualified expression receiver (e.g., `foo` in `foo?.bar()`, or in `foo.bar`).
     *
     * The function unwraps certain receiver expressions. For instance, for safe calls direct counterpart to a [KtSafeQualifiedExpression]
     * is (FirCheckedSafeCallSubject)[org.jetbrains.kotlin.fir.expressions.FirCheckedSafeCallSubject] which requires additional unwrapping
     * to be used for call resolution.

        when {
            // No class with name `classId.shortClassName` is present in the scope. Hence, we can safely import the name and shorten
            // the reference.
            availableClassifier == null -> {
                return createElementToShorten(
                    qualifierElement,

import org.jetbrains.kotlin.util.OperatorNameConventions
import org.jetbrains.kotlin.util.OperatorNameConventions.EQUALS
import org.jetbrains.kotlin.utils.addIfNotNull
import org.jetbrains.kotlin.utils.addToStdlib.safeAs
import org.jetbrains.kotlin.utils.exceptions.checkWithAttachment
import org.jetbrains.kotlin.utils.exceptions.errorWithAttachment
import org.jetbrains.kotlin.utils.exceptions.rethrowExceptionWithDetails

            token,
        )
    }
    add(FirErrors.UNNECESSARY_SAFE_CALL) { firDiagnostic ->
        UnnecessarySafeCallImpl(
            firSymbolBuilder.typeBuilder.buildKtType(firDiagnostic.a),
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.SAFE_CALL_WILL_CHANGE_NULLABILITY) { firDiagnostic ->
        SafeCallWillChangeNullabilityImpl(

import org.jetbrains.kotlin.types.expressions.OperatorConventions
import org.jetbrains.kotlin.types.typeUtil.contains
import org.jetbrains.kotlin.util.OperatorNameConventions
import org.jetbrains.kotlin.utils.addToStdlib.safeAs

internal class KtFe10CallResolver(
    override val analysisSession: KtFe10AnalysisSession
) : AbstractKtCallResolver(), Fe10KtAnalysisSessionComponent {
    private companion object {