Fix memory leak of and use without initialization.

Arena allocator's empty arena needs to be released in a destructor, this
removes the neeed for Reset.
The DataflowIterator needs to clear changed_ upon construction to avoid use
without initialization.

Change-Id: I56e3cb8c3e06c08ab0ff42447bd6e05792fc70af
4 files changed
tree: 17c679d40aaaea7ddb53fdc61494c8d243af9ce5
  1. .gitignore
  3. build/
  4. jdwpspy/
  5. src/
  6. test/
  7. tools/