AtomicInteger stringsCloseCount = new AtomicInteger();
    Stream<String> strings = source.onClose(stringsCloseCount::incrementAndGet);
    Stream<String> withIndex = Streams.mapWithIndex(strings, (str, i) -> str + ":" + i);

    withIndex.close();

    assertThat(stringsCloseCount.get()).isEqualTo(1);
  }

  public void testMapWithIndex_intStream() {
    SpliteratorTester.of(

            firFileSession,
            analysisSession.getScopeSessionFor(firFileSession),
            useCaching = true,
        )

        val ktScopesWithKinds = createScopesWithKind(firImportingScopes.withIndex())
        return KtScopeContext(ktScopesWithKinds, implicitReceivers = emptyList(), token)
    }

    override fun getScopeContextForPosition(
        originalFile: KtFile,
        positionInFakeFile: KtElement

        val result = mutableListOf<KtImplicitReceiver>()

        for ((index, implicitReceiver) in scope.getImplicitReceiversHierarchy().withIndex()) {
            val type = implicitReceiver.type.toKtType(analysisContext)
            val ownerDescriptor = implicitReceiver.containingDeclaration
            val owner = ownerDescriptor.toKtSymbol(analysisContext)

        if (typeArguments.size < typeParameters.size) return emptyMap()

        val result = mutableMapOf<KtTypeParameterSymbol, KtType>()

        for ((index, typeParameter) in typeParameters.withIndex()) {
            // After resolution all type arguments should be usual types (not FirPlaceholderProjection)
            val typeArgument = typeArguments[index]