WaE: gcc 4.6.0 various warnings

dbaccess/source/core/api/HelperCollections.cxx

@@ -109,6 +109,7 @@ namespace dbaccess
             OSQLTables::iterator aIter = m_aTables.find(_rName);
             OSL_ENSURE(aIter != m_aTables.end(),"Table not found!");
             OSL_ENSURE(aIter->second.is(),"Table is null!");
+            (void)aIter;
             return connectivity::sdbcx::ObjectType(m_aTables.find(_rName)->second,UNO_QUERY);
         }
         return NULL;

dbaccess/source/core/api/RowSetBase.cxx

@@ -1383,6 +1383,7 @@ void ORowSetBase::positionCache( CursorMoveDirection _ePrepareForDirection )
         }
     }
     OSL_ENSURE( bSuccess, "ORowSetBase::positionCache: failed!" );
+    (void)bSuccess;
 
     DBG_TRACE2("DBACCESS ORowSetBase::positionCache() Clone = %i ID = %i\n",m_bClone,osl_getThreadIdentifier(NULL));
 }