Don't delete labels when reordering of axes children (bug #63117) * graphics.in.h (children_property::do_set): Avoid using a temporary variable for new children list. Rephrase error message to be more accurate. Always return true for clarity.

## Test old-style subfunctions with no END statements

function r = duplicate_primary_subfunction_old_syntax ()
  r = 0;
  notbug ();

function r = notbug ()
  r = 1

function r = duplicate_primary_subfunction_old_syntax ()
  r = 2