Include wx/msw/wrap*.h according to pch support (with other minor cleaning).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41054 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/treectrl.cpp

@@ -29,6 +29,8 @@
 #include "wx/treectrl.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+    #include "wx/msw/missing.h"
     #include "wx/dynarray.h"
     #include "wx/log.h"
     #include "wx/app.h"
@@ -37,11 +39,6 @@
 
 #include "wx/msw/private.h"
 
-// include <commctrl.h> "properly"
-#include "wx/msw/wrapcctl.h"
-
-#include "wx/msw/missing.h"
-
 // Set this to 1 to be _absolutely_ sure that repainting will work for all
 // comctl32.dll versions
 #define wxUSE_COMCTL32_SAFELY 0