fix pathops fuzzer

turn assert into fail

R=kjlubick

Change-Id: I3a2172b6b1a9eff092bcfddcf8310f32754b93f7
Reviewed-on: https://skia-review.googlesource.com/132780
Commit-Queue: Cary Clark <caryclark@skia.org>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: Cary Clark <caryclark@skia.org>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
1 file changed