add IsOk() to all classes having Ok() method (patch 1570985)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41751 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/cmndata.cpp

@@ -252,7 +252,7 @@ void wxPrintData::operator=(const wxPrintData& data)
 }
 
 // Is this data OK for showing the print dialog?
-bool wxPrintData::Ok() const
+bool wxPrintData::IsOk() const
 {
     m_nativeData->TransferFrom( *this );