ART: BitVector not calculating number_of_bits correctly

The number_of_bits_ field has an unclear intent. Instead, using
  storage_size_ * kWordBits when relevant.

Change-Id: I8c13be0d6643de37813fb154296d451f22c298c8
Signed-off-by: Jean Christophe Beyler <jean.christophe.beyler@intel.com>
3 files changed