add a line to re-run the failed test after each failure in the compact reporter (#1736)

Closes https://github.com/dart-lang/test/issues/1734

Example output:

<img width="906" alt="Screen Shot 2022-06-28 at 11 00 32 AM" src="https://user-images.githubusercontent.com/984921/176251403-63a99464-6de2-42ad-a85e-1c794d434c00.png">
4 files changed