Related: #i125020# fix the calculation of the text-update rectangle...

in CoreText

by doing the calculation before CTLineDraw() updates the text position.
Requesting the update early is possible because that update region is
not used until AquaSalInstance::Yield().
(cherry picked from commit ee042661b996fd00d5504caf4f4be60f77bf880f)

Conflicts:
	vcl/aqua/source/gdi/ctlayout.cxx

(cherry picked from commit d2bbef3d3d6c7be096175ddbdb788ece5067f5fc)

Conflicts:
	vcl/quartz/ctlayout.cxx

Change-Id: I317a2068071a2f6d33f34c81e104e30beedc33db
Reviewed-on: https://gerrit.libreoffice.org/9628
Tested-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>