ee-specific-lines-check should complain for any non-identical HAML files
Since we already decided to use render_if_exists
to make CE/EE HAML files identical, we shouldn't allow any kinds of difference.
For now ee-specific-lines-check allows at most 2 lines difference for all the files! But that should only apply to Ruby files due to the addition of prepend
line.
Here's the example: https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8154/diffs#note_113380781
One single HAML line change, it passed: ee-specific-lines-check