[vala/0.46] harfbuzz-gobject: Update to 2.6.8

[Rico Tzschichholz <ricotz src gnome org>]

commit bb47ae9e7674244b322778e09790fb14ffbf5a97
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Jun 30 15:39:55 2020 +0200

    harfbuzz-gobject: Update to 2.6.8

 vapi/harfbuzz-gobject.vapi | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/vapi/harfbuzz-gobject.vapi b/vapi/harfbuzz-gobject.vapi
index 418eea545..b83742765 100644
--- a/vapi/harfbuzz-gobject.vapi
+++ b/vapi/harfbuzz-gobject.vapi
@@ -1730,6 +1730,9 @@ namespace HarfBuzz {
        [Version (since = "0.9.7")]
        public static void ot_layout_lookup_collect_glyphs (HarfBuzz.Face face, HarfBuzz.Tag table_tag, uint 
lookup_index, out unowned HarfBuzz.Set glyphs_before, out unowned HarfBuzz.Set glyphs_input, out unowned 
HarfBuzz.Set glyphs_after, out unowned HarfBuzz.Set glyphs_output);
        [CCode (cheader_filename = "hb-gobject.h")]
+       [Version (since = "2.6.8")]
+       public static uint ot_layout_lookup_get_glyph_alternates (HarfBuzz.Face face, uint lookup_index, 
HarfBuzz.Codepoint glyph, uint start_offset, [CCode (array_length_cname = "alternate_count", array_length_pos 
= 4.5, array_length_type = "guint")] out unowned HarfBuzz.Codepoint[] alternate_glyphs);
+       [CCode (cheader_filename = "hb-gobject.h")]
        [Version (since = "0.9.7")]
        public static void ot_layout_lookup_substitute_closure (HarfBuzz.Face face, uint lookup_index, out 
unowned HarfBuzz.Set glyphs);
        [CCode (cheader_filename = "hb-gobject.h")]
@@ -1790,7 +1793,8 @@ namespace HarfBuzz {
        [Version (since = "1.3.3")]
        public static HarfBuzz.Bool ot_math_is_glyph_extended_shape (HarfBuzz.Face face, HarfBuzz.Codepoint 
glyph);
        [CCode (cheader_filename = "hb-gobject.h")]
-       public static uint ot_meta_get_entry_tags (HarfBuzz.Face face, uint start_offset, uint entries_count, 
HarfBuzz.OtMetaTag entries);
+       [Version (since = "2.6.0")]
+       public static uint ot_meta_get_entry_tags (HarfBuzz.Face face, uint start_offset, [CCode 
(array_length_cname = "entries_count", array_length_pos = 2.5, array_length_type = "guint")] out unowned 
HarfBuzz.OtMetaTag[] entries);
        [CCode (cheader_filename = "hb-gobject.h")]
        [Version (since = "2.6.0")]
        public static HarfBuzz.Blob ot_meta_reference_entry (HarfBuzz.Face face, HarfBuzz.OtMetaTag meta_tag);