- [`KT-64447`](https://youtrack.jetbrains.com/issue/KT-64447) K2: Implement Serialization...IrBoxTestGenerated for K2
- [`KT-63591`](https://youtrack.jetbrains.com/issue/KT-63591) K2: "KotlinReflectionInternalError: Could not compute caller for function" on generated internal constructor
- [`KT-64124`](https://youtrack.jetbrains.com/issue/KT-64124) Different klib signatures in K1/K2 for a serializable class

            // the `invoke` member function. In this case, we use the `calleeExpression` in the `KtCallExpression` as the PSI
            // representation of this receiver. Caller can then use this PSI for further call resolution, which is implemented by the
            // parameter `resolveCalleeExpressionOfFunctionCall` in `toKtCallInfo`.
            var explicitReceiverPsi = when (psi) {