Fix use-after-free issue for dexfile am: 1ee0290eed am: 57ed482d34

Original change: https://googleplex-android-review.googlesource.com/c/platform/art/+/19911435

Change-Id: Iffddb71620553695ac4c1c4669e27b3540e6ea3b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>