libdocumnent: Add missing Since:

libdocument/ev-document-misc.c

@@ -190,6 +190,8 @@ ev_document_misc_render_thumbnail_frame (GtkWidget *widget,
  * @inverted_colors: whether to invert colors
  *
  * Returns: (transfer full): a #GdkPixbuf
+ *
+ * Since: 3.8
  */
 GdkPixbuf *
 ev_document_misc_render_loading_thumbnail (GtkWidget *widget,
@@ -206,6 +208,8 @@ ev_document_misc_render_loading_thumbnail (GtkWidget *widget,
  * @source_pixbuf: a #GdkPixbuf
  *
  * Returns: (transfer full): a #GdkPixbuf
+ *
+ * Since: 3.8
  */
 GdkPixbuf *
 ev_document_misc_render_thumbnail_with_frame (GtkWidget *widget,

libdocument/ev-document-text.c

@@ -69,6 +69,17 @@ ev_document_text_get_text_mapping (EvDocumentText *document_text,
 	return iface->get_text_mapping (document_text, page);
 }
 
+/**
+ * ev_document_text_get_text_attrs:
+ * @document_text: a #EvDocumentText
+ * @page: a #EvPage
+ *
+ * FIXME
+ *
+ * Returns: (transfer full): a newly created #PangoAttrList
+ *
+ * Since: 3.10
+ */
 PangoAttrList *
 ev_document_text_get_text_attrs (EvDocumentText *document_text,
 				 EvPage         *page)

libdocument/ev-link-action.c

@@ -479,6 +479,17 @@ ev_link_action_new_layers_state (GList *show_list,
 					     NULL));
 }
 
+/**
+ * ev_link_action_equal:
+ * @a: a #EvLinkAction
+ * @b: a #EvLinkAction
+ *
+ * Checks whether @a and @b are equal.
+ *
+ * Returns: %TRUE iff @a and @b are equal
+ *
+ * Since: 3.8
+ */
 gboolean
 ev_link_action_equal (EvLinkAction *a,
                       EvLinkAction *b)

libdocument/ev-link-dest.c

@@ -520,6 +520,17 @@ ev_link_dest_new_page_label (const gchar *page_label)
 					   NULL));
 }
 
+/**
+ * ev_link_dest_equal:
+ * @a: a #EvLinkDest
+ * @b: a #EvLinkDest
+ *
+ * Checks whether @a and @b are equal.
+ *
+ * Returns: %TRUE iff @a and @b are equal
+ *
+ * Since: 3.8
+ */
 gboolean
 ev_link_dest_equal (EvLinkDest *a,
                     EvLinkDest *b)

libdocument/ev-mapping-list.c

@@ -20,6 +20,12 @@
 
 #include "ev-mapping-list.h"
 
+/**
+ * SECTION: ev-mapping-list
+ * @short_description: a refcounted list of #EvMappings.
+ *
+ * Since: 3.8
+ */
 struct _EvMappingList {
 	guint          page;
 	GList         *list;