Added wxAbort() which can also be used under Windows CE.

Windows CE doesn't have abort() so provide a wrapper which can be used even
there (see #13847).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70311 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/log.cpp

@@ -355,11 +355,7 @@ wxLog::OnLog(wxLogLevel level,
     {
         wxSafeShowMessage(wxS("Fatal Error"), msg);
 
-#ifdef __WXWINCE__
-        ExitThread(3);
-#else
-        abort();
-#endif
+        wxAbort();
     }
 
     wxLog *logger;