Globally replace _T() with wxT().

Standardize on using a single macro across all wxWidgets sources and solve the name clash with Sun CC standard headers (see #10660).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61508 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/slider.h

@@ -101,7 +101,7 @@ protected:
     void Init();
 
     // format an integer value as string
-    static wxString Format(int n) { return wxString::Format(_T("%d"), n); }
+    static wxString Format(int n) { return wxString::Format(wxT("%d"), n); }
 
     // get the boundig box for the slider and possible labels
     wxRect GetBoundingBox() const;