ARITH_BXOR
token = ARITH_BXOR;
#define ARITH_BXORASS (ARITH_ASS_GAP + ARITH_BXOR)
#define ARITH_DIVASS (ARITH_ASS_GAP + ARITH_BXOR)
case ARITH_BXOR:
ARITH_PRECEDENCE(ARITH_BXOR, 6),