AI 144278: Some changes to make examination of flaky devices easier.
  Added "dexcheck" shell script, which runs the dexdump checksum
  verification against every file in /data/dalvik-cache.
  Added "-c" flag to dexdump, which quits after the checksum test
  (faster than sending everything to /dev/null).
  Initialize a ZipArchive struct earlier; without this dexdump was
  crashing in some situations when dealing with a nonexistent file.
  BUG=1749836

Automated import of CL 144278
3 files changed