Re: Caches the interior skylines of vertical axis groups and systems. (issue 7185044)

[mtsolo]

Hey all,

Following up to my comment on the tracker, I'd like to not push this
until everyone has had a chance to think through David's e-mails about
2.18.  I anticipate this needing 2-3 months of user testing to catch and
fix any bugs.  Given that this is my first big patch since August, it'll
likely take me another 6-7 months to do the next phase on top of this
patch. Comfortably after 2.18 (hopefully).

I am confident in the patch and think it is a step in the right
direction for numerous reasons, but it's obviously not worth pushing it
if people want to get 2.18 out in the next couple months.  If I did push
it, I'd send an e-mail to lilypond-user once the next development
version came out encouraging people to compile big scores and report
back any anomalies.  I haven't seen any in my scores.

Cheers,
MS

https://codereview.appspot.com/7185044/