This allows to fix some cases when there is a difference between explicit and short reference to default object
Fix shorten reference, optimize imports and import insert helper for default objects
ShortenReferences always transforms default object references to shorter form for now
Fix DescriptorUtils#getFqName() for default objects (affects test data mostly)
Fix DescriptorUtils#getImportableDescriptor()
The fqname of class should be clear from code
Example: can't shorten A.Default.B.Default.C to A.B.C
Also fixes problem when nested class of enum class could be accessed via enum entry
This is needed because different modules/libraries may define classes with the same FqNames, which may be identical or slightly different.
Such classes must be considered equal, because your dependencies may rely on different packagings of the same codebase, and the classes there will be distinct though identical
(think intellij-core vs idea-full).
Pavel V. Talanov