- Allow 'lateinit' for inline classes which underlying type
is suitable for 'lateinit'
- K2: report all problems related to 'lateinit' modifier
^KT-55052: Fixed
There was a refactoring of AbstractDiagnosticsTest in 9052ef06 which
contains bug that `setupEnvironment` for AbstractDiagnosticsTestUsingJavac
was not called, so for last year tests `UsingJavac` had no difference
with usual diagnostics tests which causes some contradictions in test data