Aubit 4GL SVN-Code

CONSTRUCT is close to INPUT but not the same - no WITHOUT_DEFAULTS, and
a Columns array naming the database column each screen field searches,
which is what the WHERE clause it produces is written in terms of.

The array dialogs send their rows up front. Row data keeps its padding,
unlike a menu option's text, because it fills fixed-width screen fields.
ARRLINE and SCRLINE are tracked separately: they differ once the list
has scrolled, and conflating them is a standard porting bug.

INPUT ARRAY turned out not to be DISPLAY ARRAY with a different verb -
it carries MAXARRSIZE, WITHOUT_DEFAULTS, ALLOWINSERT, ALLOWDELETE,
NONEWLINES and WRAP as well. Caught by checking the emitter rather than
assuming the two matched.