Skip card mark when storing known null reference

We don't need to mark the gc card if storing a null reference.

Change-Id: I445db196a097ed92b67b8bf1e6b486c6fac7d08f
5 files changed
tree: b2beddd9fda1daf451805aa416137f80d84782f2
  1. .gitignore
  2. Android.mk
  3. build/
  4. jdwpspy/
  5. src/
  6. test/
  7. tools/