[CP] DevTools 2.42.1

[elliette]

Commit(s) to merge

https://dart-review.googlesource.com/c/sdk/+/403946

Target

beta

Prepared changelist for beta/stable

https://dart-review.googlesource.com/c/sdk/+/403946

Issue Description

1. The DevTools analytics is missing data in its analytics to distinguish whether events are coming from the new or legacy inspector. This is because the parameter that was added is a boolean, but Google Analytics 4 only supports string or int values.

2. The DevTools analytics for exceptions include a truncated stacktrace, which sometimes doesn't contain any DevTools frames. This makes it hard to debug those exceptions.

Why cherry-pick

1. Without being able to distinguish between the new and legacy inspector events, we are unable to monitor the rollout of the new inspector and mitigate any issues that arise.

2. By always including the DevTools frames in any exception stacktraces sent to analytics, it makes it easier for us to debug any exceptions occurring in DevTools.

Risk

Low

Issue link(s)

1. [Inspector V2] Analytics do not distinguish between new and legacy inspector flutter/devtools#8690
2. Include Devtools frames in stacktraces sent to analytics flutter/devtools#8698

[dart-github-bot]

Summary: DevTools 2.42.1 analytics lacks data differentiating new/legacy inspector events due to an incompatible boolean parameter. This prevents monitoring the new inspector's rollout.