Svyatoslav Scherbina
1b131332ab
For a box test, the test engine generates a test launcher -- a function
that calls `box` function. The latter might require an opt-in. To deal
with this, the test engine was using some heuristics to detect possibly
used opt-ins and applied them to the test launcher.
This commit provides an alternative solution -- it uses
`@Suppress("OPT_IN_USAGE_ERROR")` annotation for the test launcher. This
way, it doesn't have to guess which opt-ins to apply.