Replaced Ok() occurrences with IsOk() throughout trunk.

Additionally renamed wxOSX' private wxNativePrinterDC::Ok() function to IsOk().

Didn't deprecate the various Ok() functions: given the amount of changes already introduced in 3.0 a trivial one like this seems more suitable for after 3.0.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67681 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/text/text.cpp

@@ -1848,7 +1848,7 @@ void RichTextFrame::OnIdle(wxIdleEvent& WXUNUSED(event))
         {
             wxString msg;
             wxString facename(wxT("unknown"));
-            if (attr.GetFont().Ok())
+            if (attr.GetFont().IsOk())
             {
                 facename = attr.GetFont().GetFaceName();
             }