fdo#84810 Avoid calc crash when using Paste Special - Link

Change-Id: I52c072578ccc0b9f75a850613056e74d400eb532
Reviewed-on: https://gerrit.libreoffice.org/11867
Reviewed-by: Kohei Yoshida <libreoffice@kohei.us>
Tested-by: Kohei Yoshida <libreoffice@kohei.us>
testCropPixel: relax requirements a bit for OS X

Change-Id: I5b72e39371671718ac31bbd92a4649a66a1241cf