internal fun PsiElement.unwrap(): PsiElement {
    return when (this) {
        is KtExpression -> this.unwrap()
        else -> this
    }
}

internal fun KtExpression.unwrap(): KtExpression {
    return when (this) {
        is KtLabeledExpression -> baseExpression?.unwrap()
        is KtAnnotatedExpression -> baseExpression?.unwrap()

// addTooNew adds any TooNew errors that can be found in err.
func (s *Switcher) addTooNew(err error) {
	switch err := err.(type) {
	case interface{ Unwrap() []error }:
		for _, e := range err.Unwrap() {
			s.addTooNew(e)
		}

	case interface{ Unwrap() error }:
		s.addTooNew(err.Unwrap())

	case *gover.TooNewError:
		if s.TooNew == nil ||
			gover.Compare(err.GoVersion, s.TooNew.GoVersion) > 0 ||

[TestFS] now returns a structured error that can be unwrapped
(via method `Unwrap() []error`). This allows inspecting errors

                throw passThrough
            } catch (passThrough: GradleException) {
                throw passThrough
            } catch (e: InvocationTargetException) {
                // unwrap ITEs as they are not useful to users
                throw GradleException("Could not load the value of $trace.", e.cause)
            } catch (e: Exception) {

                node.followingNodes
                    .filter { it !is StubNode }
                    .map { it.unwrap() }
                    .distinct()
                    .sortedBy { it.id }
            }.distinct()

        return exitPoints.size > 1
    }

    private fun CFGNode<*>.unwrap(): CFGNode<*> {
        var current = this

        while (current.isExitNode()) {

            // That is not exactly `expr`, which would be [KtLambdaExpression]. So, we need [unwrap] here.
            valueArg.getArgumentExpression()?.unwrap() == expr
        } ?: return null
        val callExpression =
            (valueArgument.parent as? KtValueArgumentList)?.parent as? KtCallElement

        if (value == null) {
            return true;
        }

        final HibernateConstraintValidatorContext hibernateContext = context.unwrap(HibernateConstraintValidatorContext.class);
        hibernateContext.disableDefaultConstraintViolation();

	// add other context: only handling the wrapped errors would lose
	// that context.
	if err != nil && reflect.TypeOf(err).String() == "*errors.joinError" {
		for _, e := range err.(interface{ Unwrap() []error }).Unwrap() {
			Error(e)
		}
		return
	}
	Errorf("go: %v", err)
}

func Fatal(err error) {
	Error(err)
	Exit()
}

var exitStatus = 0
var exitMu sync.Mutex

     *   action("") // this call
     * }
     * ```
     *
     * Unfortunately, [symbol] for the `action("")` call will be pointing to the `Function1<P1, R>.invoke(p1: P1): R`, because we
     * intentionally unwrap use-site substitution overrides. Because of this, `symbol.name` will yield `"p1"`, and not `"bar"`.
     *
     * To overcome this problem, [name] property is introduced: it allows to get the intended name of the parameter,

        else -> null
    }
}

/**
 * This logic should be equivalent to
 * [org.jetbrains.kotlin.analysis.api.fir.KaSymbolByFirBuilder.unwrapSubstitutionOverrideIfNeeded]. But this method unwrap all fake
 * overrides that do not change the signature.
 */
internal fun CallableDescriptor.unwrapFakeOverrideIfNeeded(): CallableDescriptor {
    val useSiteUnwrapped = unwrapUseSiteSubstitutionOverride()