Register usage cleanup

I plan to enable some of the old-world basic block optimizations.
Those care about temp register status, so we needed a bit of
cleanup on the temp tracking.

Change-Id: I317bce1b91a73ec9589c20ed5bfe00d53994991a
8 files changed
tree: 1e5970dd4074c9852b10ecfc6bc4f18b89d40dd7
  2. build/
  3. oat_process/
  4. oat_runtime/
  5. src/
  6. test/
  7. tools/