ofz#13491 SvxRTFItemStackType dtor excessive recurse depth

ofz#13491 SvxRTFItemStackType dtor recursively calls the dtor of its
m_pChildList. The recurse depth can grow sufficiently to trigger asan.

So breadth-first iterate through the nodes and make a flat vector of them which
can be iterated through in order of most distant from root first and release
their children linearly

Change-Id: Icc7d7130935a27595dae7b55cea41c6a53aed956
Reviewed-on: https://gerrit.libreoffice.org/71386
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

0 files changed, 0 insertions, 0 deletions