ART: Do not run verification under lock

Do not hold the object lock for the duration of the verification.
Instead, use the kStatusVerifying indicator to wait, similar to
resolution.

Bug: 27924355

(cherry picked from commit 884f3b83ed6b2a378535ac6b2be57d6b2e22de09)

Change-Id: Ie831f47dd830756a1b7002ca9c792f8ff67570dc
1 file changed