Optimizing: Tag basic block allocations with their source.

Replace GrowableArray with ArenaVector in HBasicBlock and,
to track the source of allocations, assign one new and two
Quick's arena allocation types to these vectors. Rename
kArenaAllocSuccessor to kArenaAllocSuccessors.

Bug: 23736311
Change-Id: I984aef6e615ae2380a532f5c6726af21015f43f5
27 files changed