Replace complex uses of ::std::for_each with a range-based for-loop.

Change-Id: I82331f16cc1994dd9ef36eb80d67b64171cecc74
Reviewed-on: https://gerrit.libreoffice.org/18355Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>