ASSIGN_EXPRESSION  145 create.c           exp = crb_alloc_expression(ASSIGN_EXPRESSION);
ASSIGN_EXPRESSION  259 eval.c             case ASSIGN_EXPRESSION:
ASSIGN_EXPRESSION  335 eval.c             case ASSIGN_EXPRESSION:
ASSIGN_EXPRESSION  838 eval.c             case ASSIGN_EXPRESSION:
ASSIGN_EXPRESSION  131 util.c             case ASSIGN_EXPRESSION:	/* FALLTHRU */