The previous expression `success || line.contains('--- TEST FAILED ---')` made it such that as soon as success is reported, the test would send "q" on every line of stdout, which is wrong. This fixes the condition such that "q" is sent once, only when `--- TEST SUCCEEDED ---` or `--- TEST FAILED ---` is printed.
Move from `test.dart` into new `runner_utils.dart` file:
- shard calculation related methods + `shuffleSeed` logic
- env variable flag calculation
- runner wrapper methods `runDartTest` and `_runFromList`
Create web tests suite class containing:
- web long running tests
- runWebHtmlUnitTests
- runWebCanvasKitUnitTests
- runWebSkwasmUnitTests
- the associate helper methods with the above
