#KT-45525 Fixed

^KT-44687 Fixed

#KT-45316 Fixed

property to default accessors for light-tree.

This reverts commit f4389908.

Don't lose upper non-expected type constraints to include them to intersection type during finding the result type of the fixing type variable

Those type variable may have other constraints after incorporation into which, the constraint error may appear

^KT-42042 Fixed

^KT-43303 Fixed
^KT-42396 Fixed
^KT-42472 Fixed

- Add utilities to add new attribute to ConeAttributes
- Get rid of FlexibleNullability attribute (it can be easily inferred
    for any flexible type at any moment)
- Fix determining of EnhancedNullability attribute

#KT-45243 Fixed

 #KT-42321 Fixed

If it's not within a try/catch/finally, that should be an uncaught
exception path.

^KT-45327 Fixed

Ignore evaluation tests for floorDiv and mod with FIR for now.