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

include/wx/dataview.h

@@ -163,7 +163,7 @@ public:
     void SetItalic( bool set ) { m_italic = set; }
 
     // accessors
-    bool HasColour() const { return m_colour.Ok(); }
+    bool HasColour() const { return m_colour.IsOk(); }
     const wxColour& GetColour() const { return m_colour; }
 
     bool HasFont() const { return m_bold || m_italic; }