Roll HarfBuzz to 1.2.6

third_party/harfbuzz-ng/src/hb-ot-shape-complex-myanmar.cc

 /*
  * Copyright © 2011,2012,2013  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
  * all copies of this software.
@@ skipping 421 matching lines @@
     if ((info[i].syllable() & 0x0F) == broken_cluster)
     {
       has_broken_syllables = true;
       break;
     }
   if (likely (!has_broken_syllables))
     return;
 
 
   hb_codepoint_t dottedcircle_glyph;
-  if (!font->get_glyph (0x25CCu, 0, &dottedcircle_glyph))
+  if (!font->get_nominal_glyph (0x25CCu, &dottedcircle_glyph))
     return;
 
   hb_glyph_info_t dottedcircle = {0};
   dottedcircle.codepoint = 0x25CCu;
   set_myanmar_properties (dottedcircle);
   dottedcircle.codepoint = dottedcircle_glyph;
 
   buffer->clear_output ();
 
   buffer->idx = 0;
@@ skipping 76 matching lines @@
   NULL, /* data_destroy */
   NULL, /* preprocess_text */
   NULL, /* postprocess_glyphs */
   HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT,
   NULL, /* decompose */
   NULL, /* compose */
   setup_masks_myanmar,
   HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY,
   false, /* fallback_position */
 };