xmloff: convert legacy assertions in SvXMLAutoStylePoolP
xmloff: convert legacy assertions in SvXMLAutoStylePoolP

Change-Id: Ibf3afcfb3f4dc400faa18a726ec47d58a230de65

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core