RUM-2442 [S8S] Emit _dd.session.id and _dd.application.id on view change

[maxep]

What and why?

Same as DataDog/dd-sdk-android#1813

Emit the Application and Session ID with the view so S8S can retrieve them in the device logs.

Review checklist

• Feature or bugfix MUST have appropriate tests (unit, integration)
• Make sure each commit and the PR mention the Issue number or JIRA reference
• Add CHANGELOG entry for user facing changes

Custom CI job configuration (optional)

• Run unit tests for Core, RUM, Trace, Logs, CR and WVT
• Run unit tests for Session Replay
• Run integration tests
• Run smoke tests
• Run tests for tools/

[datadog-datadog-prod-us1]

Datadog Report

Branch report: maxep/s8s-rum-context
Commit report: ac6052d
Test service: dd-sdk-ios

✅ 0 Failed, 2981 Passed, 0 Skipped, 2m 13.22s Total Time
🔻 Test Sessions change in coverage: 3 decreased, 3 increased, 7 no change

🔻 Code Coverage Decreases vs Default Branch (3)

• test DatadogTraceTests tvOS 54.94% (-0.18%) - Details
• test DatadogTraceTests iOS 54.63% (-0.03%) - Details
• test DatadogCoreTests iOS 73.93% (-0.03%) - Details

[vbarbaresi]

Thanks!

[mariedm]

/question I know that's how Android did it, but could it be useful to not delete these, and just add the new logs?

[maxep]

The logs in the view scope will be sufficient for S8S to correlate with the session, no need to keep other prints 👍