[gtk/wip/baedert/test-cflags] Replace a few more fallthrough comments

[Timm Bäder <baedert src gnome org>]

commit 822d67295a7b087c78d5d87fa550a685d651d002
Author: Timm Bäder <mail baedert org>
Date:   Thu Mar 12 08:32:03 2020 +0100

    Replace a few more fallthrough comments

 gtk/gtkgesture.c | 2 +-
 gtk/gtktext.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkgesture.c b/gtk/gtkgesture.c
index 9783373343..633c1fa3e7 100644
--- a/gtk/gtkgesture.c
+++ b/gtk/gtkgesture.c
@@ -1641,7 +1641,7 @@ _gtk_gesture_get_pointer_emulating_sequence (GtkGesture        *gesture,
         case GDK_TOUCH_END:
           if (!gdk_touch_event_get_emulating_pointer (data->event))
             continue;
-          /* Fall through */
+          G_GNUC_FALLTHROUGH;
         case GDK_BUTTON_PRESS:
         case GDK_BUTTON_RELEASE:
         case GDK_MOTION_NOTIFY:
diff --git a/gtk/gtktext.c b/gtk/gtktext.c
index b8fbf48007..b052cebb62 100644
--- a/gtk/gtktext.c
+++ b/gtk/gtktext.c
@@ -3631,7 +3631,7 @@ gtk_text_move_cursor (GtkText         *self,
         case GTK_MOVEMENT_WORDS:
           if (priv->resolved_dir == PANGO_DIRECTION_RTL)
             count *= -1;
-          /* Fall through */
+          G_GNUC_FALLTHROUGH;
 
         case GTK_MOVEMENT_LOGICAL_POSITIONS:
           if (count < 0)