ART: Mark deallocated arena memory as inaccessible.

Mark arena and scoped arena memory freed by allocator
adapters as inaccessible. This can help catch accesses to
old storage of a container, for example the old data of an
ArenaVector<> that's been resized.

Together with debug-mode enforcement of destruction of all
scoped arena containers, this provides strong verification
of their memory usage. However, this does not apply to the
normal (non-scoped) arena memory held by arena containers
as they are typically not destroyed if they are themselves
located in the arena. ArenaBitVector memory, whether in
normal or scoped arena, isn't marked either.

Change-Id: I4d2a80fedf7ceb7d4ce24ee8e7bcd53513171388

0 files changed, 0 insertions, 0 deletions