Fix type parameters indexes of MockClassDescriptor

Exception was thrown during mapping of arguments to parameters in `computeSupertypeProjections`

 #KT-18522 Fixed

core/descriptors/src/org/jetbrains/kotlin/descriptors/NotFoundClasses.kt

@@ -50,7 +50,7 @@ class NotFoundClasses(private val storageManager: StorageManager, private val mo
             private val isInner: Boolean,
             numberOfDeclaredTypeParameters: Int
     ) : ClassDescriptorBase(storageManager, container, name, SourceElement.NO_SOURCE, /* isExternal = */ false) {
-        private val typeParameters = (1..numberOfDeclaredTypeParameters).map { index ->
+        private val typeParameters = (0 until numberOfDeclaredTypeParameters).map { index ->
             TypeParameterDescriptorImpl.createWithDefaultBound(
                     this, Annotations.EMPTY, false, Variance.INVARIANT, Name.identifier("T$index"), index
             )