When `retainPriorEvents` is passed as true, the current behavior still limits timeline events to the timestamp after `traceEvents` is called. This can cause startup events to be missing.

This fixes it by passing null to `stopTracingAndDownloadTimeline` for the start and end time.

Related: #58430

* [flutter_tools] track null safety usage

* Update flutter_command_test.dart

* cleanups

Fixes several tests that were failing under tester. Minor style cleanups otherwise

The test needs to look up HOME, but one wasn't provided. This would end up using the real home directory, crashing on windows

Enable linux desktop feature on dev channel

Cleanup fuchsia tests that failed under tester.

This reverts commit 2933e895.

This reverts commit 747fe345.

This reverts commit 59956617.

Due to a bug in analyzer [1], some unused imports are not reported when
multiple import directives share a prefix name, and one or more are unused.

[1] https://github.com/dart-lang/sdk/issues/38784

Fixes #59718

Update all versions, specifically dwds which has a hot restart fix

Re-land "Deprecate WhitelistingTextInputFormatter and BlacklistingTextInputFormatter (#59120)" (#59876)

This relands #59120, which was reverted in #59870.

Revert "Deprecate WhitelistingTextInputFormatter and BlacklistingTextInputFormatter (#59120)" (#59870)

This reverts commit 8665e138.

This reverts commit df02518d.

The previous call set the minimum size, not just the initial size.