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

include/wx/debug.h

@@ -299,6 +299,13 @@ extern void WXDLLIMPEXP_BASE wxOnAssert(const char *file,
     #define wxASSERT_LEVEL_2(cond)
 #endif
 
+// This is simply a wrapper for the standard abort() which is not available
+// under all platforms.
+//
+// It isn't really debug-related but there doesn't seem to be any better place
+// for it, so declare it here and define it in appbase.cpp, together with
+// wxTrap().
+extern void WXDLLIMPEXP_BASE wxAbort();
 
 /*
     wxCHECK macros always check their conditions, setting debug level to 0 only