Most desktops allow popups to overlap the taskbar. We should allow this
additional space to be used by the completion popup.

You couldn't disable the 'always adjust column widths to contents' logic
cause of an uninitialized boolean that refused to toggle to false.

cursor looks better at the end of a line this way...

Avoids inserting all kinds of funny characters when special keys are
pressed. For some reason, the Delete key now inserts spades. At least
those are more useful than phones, according to hjk.

cursor width manually.

Note that <Esc> is called <Shift-Esc>.

Task: 205821
Details: Do not look only in the source file, but also in the first order includes for the class definition. Polish and simplify the thing a bit, do not check for Ui_foo.

Pop it upwards when it would otherwise go below the screen and shift it
to the left when it would otherwise exit the screen on the right.

now we process all includes and loads in cumulative mode again.
functions without side effects don't need special attention in the first
place, obviously. and the printing functions already have their own
handling.

- include all known functions into the map
  - some of them are actually enabled
- constant_names ~= s,CF_,T_,

Task:	229217

RevBy:    dt