lib-crash: Allow reporting exceptions without crashing

[pocmo]

In some situations you need to catch a certain type of exception (famous example: JSONException). In those situations often you can continue without crashing the app. In the case of an JSONException the cause is often that the JSON was different than what you expected. In those situations it would be nice to not only silently continue running but also report this exception (like a crash) via lib-crash. With that this error is visible to us and we can fix our code.

┆Issue is synchronized with this Jira Task

[pocmo]

This would be very handy for the Fennec migration code: We want to be super defensive here and not crash. However we desperately want to know if anything goes wrong and if we need to fix our migration code.

@rocketsroger Maybe a good follow-up for the work you have been doing? :) Maybe something like a CrashReporter.submitReportFor(throwable: Throwable)?

[rocketsroger]

Maybe something like a CrashReporter.submitReportFor(throwable: Throwable)?

Agreed. Issue created: #4467

[pocmo]

Wait. This is already an AC issue :D

[rocketsroger]

Wait. This is already an AC issue :D

I see what you mean. My mistake. No new issue needed to be created. I'll self assign this one. Thanks!

[rocketsroger]

Follow up after this issue is fixed: #4589