Roll HarfBuzz to 0.9.35

third_party/harfbuzz-ng/src/hb-ot-shape-normalize.cc

 /*
  * Copyright © 2011,2012  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 271 matching lines @@
 
   return a < b ? -1 : a == b ? 0 : +1;
 }
 
 
 void
 _hb_ot_shape_normalize (const hb_ot_shape_plan_t *plan,
                         hb_buffer_t *buffer,
                         hb_font_t *font)
 {
+  _hb_buffer_assert_unicode_vars (buffer);
+
   hb_ot_shape_normalization_mode_t mode = plan->shaper->normalization_preference;
   const hb_ot_shape_normalize_context_t c = {
     plan,
     buffer,
     font,
     buffer->unicode,
     plan->shaper->decompose ? plan->shaper->decompose : decompose_unicode,
     plan->shaper->compose   ? plan->shaper->compose   : compose_unicode
   };
 
@@ skipping 102 matching lines @@
 
     /* Blocked, or doesn't compose. */
     buffer->next_glyph ();
 
     if (_hb_glyph_info_get_modified_combining_class (&buffer->prev()) == 0)
       starter = buffer->out_len - 1;
   }
   buffer->swap_buffers ();
 
 }