WaE: 'Impl' defined as a struct here but previously declared as a class

Change-Id: Ie1ca2df3e4b60c69a3c7860fe39aca4a505feffb

sw/inc/tblafmt.hxx

@@ -309,7 +309,7 @@ public:
 
 class SW_DLLPUBLIC SwTableAutoFmtTbl
 {
-    class Impl;
+    struct Impl;
     ::boost::scoped_ptr<Impl> m_pImpl;
 
     SW_DLLPRIVATE sal_Bool Load( SvStream& rStream );