Move: Suggest creating Kotlin file if it doesn't exist
 #KT-5379 Fixed
Light Classes: Do not add "final" modifier to enum light classes
Light Classes: Provide light classes (as well as light fields) for enum entries
Implementation Navigation: Add tests for enum entries
 #KT-3540 Fixed
Change Signature: Add tests for enum entries
 #KT-6034 Fixed
Rename: Add tests for enum entries
 #KT-4800 Fixed
Find Usages: Add tests for enum entries