Update our lastmoveindex if addPath ended with a kClose verb

Bug: 1153516
Change-Id: Id6ab162ba3bbf902048009ae2b48b2c67f814b99
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/342616
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
2 files changed