- The issue was caused by incorrect parsing of enum entry because of `$` in the `KotlinCompletionContributor::DEFAULT_DUMMY_IDENTIFIER`
- Incorrect parsing caused arguments next to completed one to be recognized as another enum entries
- Change `KotlinCompletionContributor::isInClassHeader` to accept classes without bodies, so identifier without `$` is used inside enum entries constructors
- ^KT-31762 Fixed
Roman Golyshev