LOGICAL_NOT_EXPRESSION  244 create.c           exp = crb_alloc_expression(LOGICAL_NOT_EXPRESSION);
LOGICAL_NOT_EXPRESSION  338 eval.c             case LOGICAL_NOT_EXPRESSION:	/* FALLTHRU */
LOGICAL_NOT_EXPRESSION  417 eval.c             case LOGICAL_NOT_EXPRESSION:	/* FALLTHRU */
LOGICAL_NOT_EXPRESSION 1397 eval.c             case LOGICAL_NOT_EXPRESSION: