[gtk/harfbuzz-deprecations: 111/112] Ignore deprecated HarfBuzz API

[Emmanuele Bassi <ebassi src gnome org>]

commit daea92ea0010232efc1d95f378e8afe9e87a041d
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Apr 12 18:40:08 2019 +0100

    Ignore deprecated HarfBuzz API
    
    HarfBuzz 2.0 deprecated some API used by the GtkFontChooser, but since
    we're still supporting older versions of HarfBuzz, we should disable the
    deprecation warnings to avoid too much noise during builds.

 gtk/gtkfontchooserwidget.c | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/gtk/gtkfontchooserwidget.c b/gtk/gtkfontchooserwidget.c
index c6eb764082..4f9954fd64 100644
--- a/gtk/gtkfontchooserwidget.c
+++ b/gtk/gtkfontchooserwidget.c
@@ -1798,7 +1798,11 @@ find_affected_text (hb_tag_t   feature_tag,
   chars = g_string_new ("");
 
   hb_ot_layout_table_find_script (hb_face, HB_OT_TAG_GSUB, script_tag, &script_index);
+
+  G_GNUC_BEGIN_IGNORE_DEPRECATIONS
   hb_ot_layout_script_find_language (hb_face, HB_OT_TAG_GSUB, script_index, lang_tag, &lang_index);
+  G_GNUC_END_IGNORE_DEPRECATIONS
+
   if (hb_ot_layout_language_find_feature (hb_face, HB_OT_TAG_GSUB, script_index, lang_index, feature_tag, 
&feature_index))
     {
       unsigned int lookup_indexes[32];
@@ -2166,7 +2170,11 @@ gtk_font_chooser_widget_update_font_features (GtkFontChooserWidget *fontchooser)
       for (i = 0; i < 2; i++)
         {
           hb_ot_layout_table_find_script (hb_face, table[i], script_tag, &script_index);
+
+          G_GNUC_BEGIN_IGNORE_DEPRECATIONS
           hb_ot_layout_script_find_language (hb_face, table[i], script_index, lang_tag, &lang_index);
+          G_GNUC_END_IGNORE_DEPRECATIONS
+
           count = G_N_ELEMENTS (features);
           hb_ot_layout_language_get_feature_tags (hb_face,
                                                   table[i],