[gtk] Update gtk-doc types file for GTK 4

[Emmanuele Bassi <ebassi src gnome org>]

commit df19224b20eaa468b86d0d1d3e623ecef204027d
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue Apr 2 21:43:34 2019 +0100

    Update gtk-doc types file for GTK 4
    
    We're missing newly added types, and listing removed ones.

 docs/reference/gtk/gtk4.types.in | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/docs/reference/gtk/gtk4.types.in b/docs/reference/gtk/gtk4.types.in
index 9bf0f4ced0..f8d9c90409 100644
--- a/docs/reference/gtk/gtk4.types.in
+++ b/docs/reference/gtk/gtk4.types.in
@@ -16,7 +16,9 @@ gtk_aspect_frame_get_type
 gtk_assistant_get_type
 gtk_assistant_page_get_type
 gtk_bin_get_type
+gtk_bin_layout_get_type
 gtk_box_get_type
+gtk_box_layout_get_type
 gtk_builder_get_type
 gtk_buildable_get_type
 gtk_button_get_type
@@ -64,6 +66,7 @@ gtk_file_chooser_get_type
 gtk_file_chooser_widget_get_type
 gtk_file_filter_get_type
 gtk_fixed_get_type
+gtk_fixed_layout_get_type
 gtk_flow_box_get_type
 gtk_flow_box_child_get_type
 gtk_font_button_get_type
@@ -92,7 +95,8 @@ gtk_im_context_simple_get_type
 gtk_im_multicontext_get_type
 gtk_info_bar_get_type
 gtk_label_get_type
-gtk_layout_get_type
+gtk_layout_child_get_type
+gtk_layout_manager_get_type
 gtk_link_button_get_type
 gtk_list_store_get_type
 gtk_list_box_get_type