Only in editengine could we have this fiasco.

There are two ImpEditEngine::GetScriptType's

a) sal_uInt16 ImpEditEngine::GetScriptType(const EditPaM& rPaM, sal_uInt16* pEndPos) const
this one returns i18n::ScriptType

b) sal_uInt16 ImpEditEngine::GetScriptType(const EditSelection& rSel) const
this one returns SCRIPTTYPE

Could there be a better way to ensure that mistakes will be made.

Anyway, within variant b, with an empty edit engine
ImpEditEngine::GetScriptType calls GetI18NScriptTypeOfLanguage but *that*
returns i18n::ScriptType's not SCRIPTTYPEs but when there is content then a
SCRIPTTYPE is truly returned.

Change-Id: I3a4a7c8746728e0fdfb25d961004c8339a24c93d