Merge topic 'xcode-pch' into release-3.23 476c6a8910 PCH: Fix Xcode non-pch language exclusion fcf1fcfd0c Tests: Ignore all classes in Xcode internal objc warnings Acked-by: Kitware Robot <kwrobot@kitware.com> Acked-by: buildbot <buildbot@kitware.com> Merge-request: !7166