return mapping[fir]?.getOrNull()
        }

        override fun visitElement(element: FirElement) {
            withElement(element) {
                if (element in statements) {
                    // The leaf is in mapping, but its value is still 'null'
                    mapping.computeIfAbsent(element) { _ ->
                        unmappedCount -= 1

      if (exception == null) {
        exception = ioe
      }
    }
  }
  if (exception != null) {
    throw exception
  }
}

internal fun <E> MutableList<E>.addIfAbsent(element: E) {
  if (!contains(element)) add(element)
}

internal fun Exception.withSuppressed(suppressed: List<Exception>): Throwable =
  apply {
    for (e in suppressed) addSuppressed(e)
  }

    override fun visitErrorElement(element: PsiErrorElement) {
        collectedDiagnostics += ConeSyntaxDiagnostic(element.errorDescription)
            .toFirDiagnostics(useSiteSession, KtRealPsiSourceElement(element), callOrAssignmentSource = null)
            .map { diagnosticConverter(it as KtPsiDiagnostic) }

        super.visitErrorElement(element)
    }

      }
    }

    override fun put(element: T) {
      taskRunner.lock.withLock {
        delegate.put(element)
        editCount++
      }
    }

    override fun iterator() = error("unsupported")

    override fun offer(e: T) = error("unsupported")

    override fun peek(): T = error("unsupported")

    override fun offer(
      element: T,
      timeout: Long,
      unit: TimeUnit,

        private fun throwUnexpectedElementError(element: FirBasedSymbol<*>): Nothing {
            errorWithAttachment("Unexpected ${element::class.simpleName}") {
                withFirSymbolEntry("firSymbol", element)
            }
        }

        private fun throwUnexpectedElementError(element: FirElement): Nothing {
            errorWithAttachment("Unexpected ${element::class.simpleName}") {

        )
    }

    private fun handleAsFunctionCall(context: BindingContext, element: KtElement): KtCallInfo? {
        return element.getResolvedCall(context)?.let { handleAsFunctionCall(context, element, it) }
    }

    private fun handleAsFunctionCall(
        context: BindingContext,
        element: KtElement,
        resolvedCall: ResolvedCall<*>,
        diagnostics: Diagnostics = context.diagnostics

            }
        })

        file.accept(object : KtTreeVisitorVoid() {
            override fun visitElement(element: PsiElement) {
                super.visitElement(element)
                if (element is KDocLink) {
                    visitKDocLink(element)
                }
            }

            private fun visitKDocLink(docLink: KDocLink) {

        override fun contains(element: Protocol?): Boolean {
          if (element == null) throw NullPointerException()
          return super.contains(element)
        }

        override fun indexOf(element: Protocol?): Int {
          if (element == null) throw NullPointerException()
          return super.indexOf(element)
        }
      } as List<Protocol>
    val client =

  //   done on a path element by element basis. A path element refers is the
  //   list of labels in the path split by the '/' separator. A request is a
  //   match for path p if every p is an element-wise prefix of p of the
  //   request path. Note that if the last element of the path is a substring
  //   of the last element in request path, it is not a match (e.g. /foo/bar

  //   done on a path element by element basis. A path element refers is the
  //   list of labels in the path split by the '/' separator. A request is a
  //   match for path p if every p is an element-wise prefix of p of the
  //   request path. Note that if the last element of the path is a substring
  //   of the last element in request path, it is not a match (e.g. /foo/bar