Disallow DexFile::Open on directories
Disallow DexFile::Open on directories

Change-Id: I003c883a586c12d243cb4fa3c0618ad4f239319f

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst