bit_val was being used directly in the statement in return. If type B had fewer bits...

bit_val was being used directly in the statement in return. If type B had fewer bits than last, bit_val << last would get the wrong answer.

src/base/bitfield.hh:
    bit_val was being used directly in the statement in
    return. If type B had fewer bits than last, bit_val << last would get
    the wrong answer.

--HG--
extra : convert_revision : cbc43ccd139f82ebbd65f30af5d05b87c4edac64