GenericSslError is never constructed by the Kotlin executor

The Swift and Kotlin executors classify a degenerate SSL failure differently.

Swift emits `genericSslError` when the leaf certificate cannot be parsed. In the Kotlin tree `GenericSslError` is never constructed — the identifier appears only as fixture text in a bindings-parser unit test. Kotlins degenerate path returns `CertificateNotValidForName` with an empty hostname list instead.

So a caller matching `GenericSslError` gets different behaviour depending on platform.

Reported from an investigation into the 0.7.0 upgrade on Android; the Kotlin-side claim came from a source sweep rather than a runtime check, so worth confirming before acting.