This reverts commit fce604c8,
and fixes
  tdf#105735 - xray ThisComponent no longer works
in the process.

It turns out Basic doesn't support sal_uInt64 very well, so lets rather
have a small possibility of bad timestamps instead of broken scripts.

Change-Id: Ic00485bd517a4fc61e05632001c9a5f92e05ddd6
Reviewed-on: https://gerrit.libreoffice.org/33972Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>