Extract EE specific files/lines for Discussion app/models
We have the following files containing EE specific code. We should move them to ee/
- app/models/diff_note.rb
- app/models/discussion_note.rb
- app/models/issue.rb
- app/models/issue_assignee.rb
- app/models/legacy_diff_note.rb
- app/models/merge_request.rb
- app/models/merge_request_diff.rb
- app/models/milestone.rb
- app/models/note.rb
- app/models/personal_snippet.rb
- app/models/project_snippet.rb
- app/models/snippet.rb
- app/models/system_note_metadata.rb
A lot of files, but most of them should be pretty straightforward.