Instead of relying on UNRESOLVED_REFERENCE directive for the whole file,
just render the unresolved reference right in the .txt testdata
This will allow to introduce multi-caret resolve testdata more naturally
Required for KT-65152 and KT-62695
k1 would suggest `get` as well
but with current fir structure with fake desugaring
get is moved to the separate fake psi which doesn't exist
thus the problem is ignored for now
^ KTIJ-24025