return wholeTypeFir.type.classId?.dropLastNestedClasses(qualifiersToDrop)
    }

    /**
     * @return class id without [classesToDrop] last nested classes, or `null` if [classesToDrop] is too big.
     *
     * Example: `foo.bar.Baz.Inner` with 1 dropped class is `foo.bar.Baz`, and with 2 dropped class is `null`.
     */
    private fun ClassId.dropLastNestedClasses(classesToDrop: Int) =

        val parameters = classifier.declaredTypeParameters
        val arguments = type.arguments

        if ((defaultType.isFunctionType && arguments.size > BuiltInFunctionArity.BIG_ARITY) || defaultType.isKFunctionType) {
            writeGenericArguments(sw, arguments.take(1), parameters.take(1), mode)
            return
        }

        writeGenericArguments(sw, arguments, parameters, mode)

- [`KT-61741`](https://youtrack.jetbrains.com/issue/KT-61741) Kotlin/Native: tsan error in parallel mark
- [`KT-57773`](https://youtrack.jetbrains.com/issue/KT-57773) Kotlin/Native: track memory in big chunks in the GC scheduler
- [`KT-61089`](https://youtrack.jetbrains.com/issue/KT-61089) Kotlin/Native: fix concurrent weak processing for new allocations