Tune ArenaBitVector::Iterator::Next.

Hot routine:
1) move to header file so that fields may be moved to registers,
2) remove search for bits in word with a CTZ.

Change-Id: I960ee811234c3a65d11f0af55ed15c4444f486ae
2 files changed
tree: c62c7652860e19252c54fefddb2d95b380a8c594
  1. .gitignore
  2. Android.mk
  3. build/
  4. jdwpspy/
  5. src/
  6. test/
  7. tools/