All existing tests use custom test data for FIR because the diagnostic
text in FIR has to have a dot at the end. Also, the K2 checker doesn't
check usages in imports because there are no "import checkers" in K2
right now, this will need to be fixed later if necessary.
#KT-60797 Fixed
Somehow we ended up in the state where we have two diagnostics which are
not covered by any tests in the project. This commit adds simple tests
for them.
#KT-60797