[docs] Reduce gtkdoc-check errors

Now it is just reporting one error about “503 undocumented or incomplete
symbols”, that will be the easy part I guess.
diff --git a/docs/harfbuzz-docs.xml b/docs/harfbuzz-docs.xml
index 7d2232f..6c03f39 100644
--- a/docs/harfbuzz-docs.xml
+++ b/docs/harfbuzz-docs.xml
@@ -77,6 +77,8 @@
         <xi:include href="xml/hb-ot.xml"/>
         <xi:include href="xml/hb-ot-layout.xml"/>
         <xi:include href="xml/hb-ot-tag.xml"/>
+        <xi:include href="xml/hb-ot-font.xml"/>
+        <xi:include href="xml/hb-ot-shape.xml"/>
 
         <xi:include href="xml/hb-shape-plan.xml"/>
 
@@ -100,6 +102,78 @@
         <title>API Index</title>
         <xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>
       </index>
+      <index id="api-index-0-9-2" role="0.9.2">
+        <title>Index of new symbols in 0.9.2</title>
+        <xi:include href="xml/api-index-0.9.2.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-5" role="0.9.5">
+        <title>Index of new symbols in 0.9.5</title>
+        <xi:include href="xml/api-index-0.9.5.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-7" role="0.9.7">
+        <title>Index of new symbols in 0.9.7</title>
+        <xi:include href="xml/api-index-0.9.7.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-8" role="0.9.8">
+        <title>Index of new symbols in 0.9.8</title>
+        <xi:include href="xml/api-index-0.9.8.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-10" role="0.9.10">
+        <title>Index of new symbols in 0.9.10</title>
+        <xi:include href="xml/api-index-0.9.10.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-11" role="0.9.11">
+        <title>Index of new symbols in 0.9.11</title>
+        <xi:include href="xml/api-index-0.9.11.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-20" role="0.9.20">
+        <title>Index of new symbols in 0.9.20</title>
+        <xi:include href="xml/api-index-0.9.20.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-22" role="0.9.22">
+        <title>Index of new symbols in 0.9.22</title>
+        <xi:include href="xml/api-index-0.9.22.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-28" role="0.9.28">
+        <title>Index of new symbols in 0.9.28</title>
+        <xi:include href="xml/api-index-0.9.28.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-30" role="0.9.30">
+        <title>Index of new symbols in 0.9.30</title>
+        <xi:include href="xml/api-index-0.9.30.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-31" role="0.9.31">
+        <title>Index of new symbols in 0.9.31</title>
+        <xi:include href="xml/api-index-0.9.31.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-38" role="0.9.38">
+        <title>Index of new symbols in 0.9.38</title>
+        <xi:include href="xml/api-index-0.9.38.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-39" role="0.9.39">
+        <title>Index of new symbols in 0.9.39</title>
+        <xi:include href="xml/api-index-0.9.39.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-41" role="0.9.41">
+        <title>Index of new symbols in 0.9.41</title>
+        <xi:include href="xml/api-index-0.9.41.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-0-9-42" role="0.9.42">
+        <title>Index of new symbols in 0.9.42</title>
+        <xi:include href="xml/api-index-0.9.42.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-0-5" role="1.0.5">
+        <title>Index of new symbols in 1.0.5</title>
+        <xi:include href="xml/api-index-1.0.5.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-1-2" role="1.1.2">
+        <title>Index of new symbols in 1.1.2</title>
+        <xi:include href="xml/api-index-1.1.2.xml"><xi:fallback /></xi:include>
+      </index>
+      <index id="api-index-1-1-3" role="1.1.3">
+        <title>Index of new symbols in 1.1.3</title>
+        <xi:include href="xml/api-index-1.1.3.xml"><xi:fallback /></xi:include>
+      </index>
       <index id="deprecated-api-index" role="deprecated">
         <title>Index of deprecated API</title>
         <xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
diff --git a/docs/harfbuzz-sections.txt b/docs/harfbuzz-sections.txt
index 3ad7be4..153f19e 100644
--- a/docs/harfbuzz-sections.txt
+++ b/docs/harfbuzz-sections.txt
@@ -2,6 +2,7 @@
 <FILE>hb</FILE>
 <SUBSECTION Private>
 HB_H_IN
+HB_EXTERN
 </SECTION>
 
 <SECTION>
@@ -25,6 +26,7 @@
 <SECTION>
 <FILE>hb-buffer</FILE>
 HB_SEGMENT_PROPERTIES_DEFAULT
+HB_BUFFER_REPLACEMENT_CODEPOINT_DEFAULT
 hb_buffer_create
 hb_buffer_reference
 hb_buffer_get_empty
@@ -38,6 +40,7 @@
 hb_buffer_add_utf32
 hb_buffer_add_utf16
 hb_buffer_add_utf8
+hb_buffer_add_latin1
 hb_buffer_set_content_type
 hb_buffer_get_content_type
 hb_buffer_set_direction
@@ -61,8 +64,11 @@
 hb_buffer_get_user_data
 hb_buffer_get_glyph_infos
 hb_buffer_get_glyph_positions
+hb_buffer_set_replacement_codepoint
+hb_buffer_get_replacement_codepoint
 hb_buffer_normalize_glyphs
 hb_buffer_reverse
+hb_buffer_reverse_range
 hb_buffer_reverse_clusters
 hb_buffer_serialize_glyphs
 hb_buffer_deserialize_glyphs
@@ -71,14 +77,17 @@
 hb_buffer_serialize_list_formats
 hb_segment_properties_equal
 hb_segment_properties_hash
+hb_buffer_set_message_func
 hb_buffer_t
 hb_glyph_info_t
 hb_glyph_position_t
 hb_buffer_content_type_t
 hb_buffer_flags_t
+hb_buffer_cluster_level_t
 hb_buffer_serialize_flags_t
 hb_segment_properties_t
 hb_buffer_serialize_format_t
+hb_buffer_message_func_t
 </SECTION>
 
 <SECTION>
@@ -108,6 +117,7 @@
 HB_TAG
 HB_TAG_NONE
 HB_TAG_MAX
+HB_TAG_MAX_SIGNED
 HB_UNTAG
 HB_DIRECTION_REVERSE
 HB_DIRECTION_IS_BACKWARD
@@ -242,14 +252,27 @@
 hb_font_subtract_glyph_origin_for_direction
 hb_font_t
 hb_reference_table_func_t
+hb_font_funcs_set_font_h_extents_func
+hb_font_funcs_set_font_v_extents_func
+hb_font_get_extents_for_direction
+hb_font_get_font_extents_func_t
+hb_font_get_font_h_extents_func_t
+hb_font_get_font_v_extents_func_t
+hb_font_get_h_extents
+hb_font_get_v_extents
+hb_font_set_parent
 </SECTION>
 
 <SECTION>
 <FILE>hb-ft</FILE>
 hb_ft_face_create
 hb_ft_face_create_cached
+hb_ft_face_create_referenced
 hb_ft_font_create
+hb_ft_font_create_referenced
 hb_ft_font_get_face
+hb_ft_font_set_load_flags
+hb_ft_font_get_load_flags
 hb_ft_font_set_funcs
 </SECTION>
 
@@ -258,6 +281,7 @@
 hb_glib_get_unicode_funcs
 hb_glib_script_from_script
 hb_glib_script_to_script
+hb_glib_blob_create
 </SECTION>
 
 <SECTION>
@@ -279,6 +303,13 @@
 HB_GOBJECT_TYPE_UNICODE_COMBINING_CLASS
 HB_GOBJECT_TYPE_UNICODE_FUNCS
 HB_GOBJECT_TYPE_UNICODE_GENERAL_CATEGORY
+HB_GOBJECT_TYPE_BUFFER_CLUSTER_LEVEL
+HB_GOBJECT_TYPE_FEATURE
+HB_GOBJECT_TYPE_GLYPH_INFO
+HB_GOBJECT_TYPE_GLYPH_POSITION
+HB_GOBJECT_TYPE_SEGMENT_PROPERTIES
+HB_GOBJECT_TYPE_SET
+HB_GOBJECT_TYPE_USER_DATA_KEY
 hb_gobject_blob_get_type
 hb_gobject_buffer_content_type_get_type
 hb_gobject_buffer_flags_get_type
@@ -296,6 +327,13 @@
 hb_gobject_unicode_combining_class_get_type
 hb_gobject_unicode_funcs_get_type
 hb_gobject_unicode_general_category_get_type
+hb_gobject_buffer_cluster_level_get_type
+hb_gobject_feature_get_type
+hb_gobject_glyph_info_get_type
+hb_gobject_glyph_position_get_type
+hb_gobject_segment_properties_get_type
+hb_gobject_set_get_type
+hb_gobject_user_data_key_get_type
 <SUBSECTION Private>
 HB_GOBJECT_H_IN
 </SECTION>
@@ -343,6 +381,7 @@
 HB_OT_TAG_GDEF
 HB_OT_TAG_GPOS
 HB_OT_TAG_GSUB
+HB_OT_TAG_JSTF
 hb_ot_layout_collect_lookups
 hb_ot_layout_feature_get_lookups
 hb_ot_layout_get_attach_points
@@ -370,6 +409,7 @@
 hb_ot_layout_table_get_script_tags
 hb_ot_layout_table_get_lookup_count
 hb_ot_shape_plan_collect_lookups
+hb_ot_layout_language_get_required_feature_index
 <SUBSECTION Private>
 Xhb_ot_layout_lookup_enumerate_sequences
 Xhb_ot_layout_lookup_position