for symmetry also the other constructors in the same class
and mark their destructors as virtual if they are anyway
(cherry picked from commit 870349eada8c0e56d58c8d2ee40ad561a9f982fe)
Conflicts:
vcl/inc/vcl/button.hxx
vcl/inc/vcl/combobox.hxx
vcl/inc/vcl/ctrl.hxx
vcl/inc/vcl/dialog.hxx
vcl/inc/vcl/dockingarea.hxx
vcl/inc/vcl/event.hxx
vcl/inc/vcl/field.hxx
vcl/inc/vcl/fixed.hxx
vcl/inc/vcl/floatwin.hxx
vcl/inc/vcl/fontmanager.hxx
vcl/inc/vcl/group.hxx
vcl/inc/vcl/lstbox.hxx
vcl/inc/vcl/menu.hxx
vcl/inc/vcl/menubtn.hxx
vcl/inc/vcl/metaact.hxx
vcl/inc/vcl/morebtn.hxx
vcl/inc/vcl/pngread.hxx
vcl/inc/vcl/scrbar.hxx
vcl/inc/vcl/spin.hxx
vcl/inc/vcl/spinfld.hxx
vcl/inc/vcl/split.hxx
vcl/inc/vcl/syschild.hxx
vcl/inc/vcl/tabpage.hxx
vcl/inc/vcl/virdev.hxx
vcl/inc/vcl/wrkwin.hxx
Change-Id: I8c29f74208cf382a9baa01c2e2d0757688cb4641
see https://gerrit.libreoffice.org/#/c/3367/
and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details
Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a
