Support unhandled Kotlin Native Exceptions

[rickclephas]

Description

When using Bugsnag in an iOS project using Kotlin Native we use the Bugsnag.notify method to record unhandled NSExceptions (which are created from the unhandled Kotlin exceptions).
Up until v6.26.2 this has been working quite well. However since v6.26.2 the unhandled property on the event no longer controls whether the event is stored to disk (#1549). This results in the exceptions being lost since the app immediately terminates after the notify call.

Describe the solution you'd like
I would like to request a parameter or a method that will force the exception to be written to disk.
So something like Bugsnag.notifyFatal or event.isFatal = true would be great.

P.S. I can create a PR for this, just let me know what API best fits the Bugsnag Cocoa library.

Describe alternatives you've considered
I am currently "overriding" the originalUnhandledValue to return the modified unhandled value. Which obviously isn't ideal.

[mclack]

Hi @rickclephas
Thanks for bringing this to our attention. We're currently looking into this and will make sure to post any updates on this thread.