13beab1ecc
In service of https://github.com/flutter/flutter/issues/146879 and https://github.com/flutter/flutter/issues/145812. In these issues, we see what appears to be the flutter tool getting stuck somewhere during hot reload. It may help if we knew were exactly where we are getting stuck (preparing assets, writing them to device, etc.). This PR adds a new parameter to `FlutterTestDriver::run`, `verbose`. When verbose is set, `FlutterTestDriver` will run `flutter` with `--verbose` in its tests. Keep in mind that `FlutterTestDriver` only prints logs from `flutter` when a test fails, so this shouldn't spam the logs of passing tests. This PR sets the parameter when invoking the flaky tests from https://github.com/flutter/flutter/issues/146879 and #145812, so we should see more detailed logs in future flakes. While this is a low risk PR, you can verify the change by intentionally breaking hot reload code, clearing the cached tool binaries, and then running either of these tests.
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