File/dir dialog styles and other changes (patch 1488371):

- check invalid combinations of styles in wxFileDialogBase::Create()
- use wxFD_XXX naming convention for wxFileDialog styles
- replaces wxDD_NEW_DIR_BUTTON with wxDD_DIR_MUST_EXIST
- removes #ifdef __WXGTK24__ / #endif blocks from wxGTK code
- removes wxFileDialogBase::Get/SetStyle and wxFileDialogBase::m_fileName
- renames wxDirDialogGTK to wxDirDialog


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39402 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/defs.h

@@ -1706,13 +1706,6 @@ enum wxBorder
 #define wxPD_REMAINING_TIME     0x0040
 #define wxPD_CAN_SKIP           0x0080
 
-/*
- * wxDirDialog styles
- */
-
-#define wxDD_NEW_DIR_BUTTON     0x0080
-#define wxDD_CHANGE_DIR         0x0100
-
 
 /*
  * extended dialog specifiers. these values are stored in a different