Provide mechanism to detect if during previous run app was closed because of ANR

[sidky]

What feature would you like to see?

Way to detect, if during previous run, user saw a dialog for ANR, and decided to close.

Describe the feature you would like to add, ideally proposing a specific API.

Provide a method in FirebaseCrashlytics, didANRKillOnPreviousExecution(), which would

• On versions, older than Android 11, would always return false
• For newer versions, detect if ApplicationExitInfo was REASON_ANR and based on that report true/false

How would you use it?

Use that to identify if certain features are producing more ANRs or not, just like crashes

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.