Roll HarfBuzz to 1.2.1

third_party/harfbuzz-ng/src/hb-ot-tag.cc

 /*
  * Copyright © 2009  Red Hat, Inc.
  * Copyright © 2011  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
@@ skipping 909 matching lines @@
     buf[7] = (tag >> 16) & 0xFF;
     buf[8] = (tag >> 8) & 0xFF;
     buf[9] = tag & 0xFF;
     if (buf[9] == 0x20)
       buf[9] = '\0';
     buf[10] = '\0';
     return hb_language_from_string ((char *) buf, -1);
   }
 }
 
-#if 0
+#ifdef MAIN
 static inline void
 test_langs_sorted (void)
 {
   for (unsigned int i = 1; i < ARRAY_LENGTH (ot_languages); i++)
   {
     int c = lang_compare_first_component (ot_languages[i-1].language, ot_languages[i].language);
     if (c >= 0)
     {
       fprintf (stderr, "ot_languages not sorted at index %d: %s %d %s\n",
                i, ot_languages[i-1].language, c, ot_languages[i].language);
       abort();
     }
   }
 }
-#endif
 
-#ifdef MAIN
 int
 main (void)
 {
   test_langs_sorted ();
   return 0;
 }
 
 #endif