1. The assembler tried to write to unaligned addresses but memcpy fixes this.
2. The InstKind and OperandKind enums allowed target specific kinds that did not
fall in the defined range. Defining the maximum target kind in the enum sorts
this problem.
BUG=
R=stichnot@chromium.org
Review URL: https://codereview.chromium.org/1311653003 .
