Comment #55 on issue 2801 by [email protected]: Patch: Approximates cross-staff slurs in VerticalAxisGroup vertical-skylines.
http://code.google.com/p/lilypond/issues/detail?id=2801
Are you compiling with -disable-optimising like the regtests (in which casekeep-inline-functions is implied anyway and will not make a difference. Sorry, did not think of that)?
