* Removes unnecessary test projects.
* Add a sample project to quickly test changes.
* Breaks off tests based on multiple startups.
* Unifies assertions across tests.
* Captures all logs on test failures.
Fixes: #13086
- Fixed some wrong logging (wrong EventIds)
- Added a base class for ignitor tests
- Centralized code for capturing data in ignitor
- Make `WaitForXyz` methods return the thing they found
- Make `WaitForXyz` methods report logs on timeout
- Fix synchronization problems with some tests
- Split invalid event tests into their own class for code reuse
The main thing here is that some of the JS interop reliability tests had
causality/synchronization problems. They were either not waiting for a
render batch, or they were not *triggering* a render batch.
In addition to that, I did a general consolidation of the infrastructure
for these tests to make sure that they are all using the same set of
practices. I found and fixed cases where tests were using timeouts that
were too small (inconsistency) or where they were using non-threadsafe
data structures (these tests always involve concurrency).
Javier Calvarro Nelson
Ryan Nowak