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/appbase.cpp

@@ -1006,6 +1006,15 @@ bool wxAssertIsEqual(int x, int y)
     return x == y;
 }
 
+void wxAbort()
+{
+#ifdef __WXWINCE__
+    ExitThread(3);
+#else
+    abort();
+#endif
+}
+
 #if wxDEBUG_LEVEL
 
 // break into the debugger