[gtksourceview/wip/chergert/gsv-gtk4] completion: fix warnings for cell

[Christian Hergert <chergert src gnome org>]

commit e142de46529cc20f79c1847dc7ac438ad1c846f6
Author: Christian Hergert <chergert redhat com>
Date:   Sun Aug 30 07:36:02 2020 -0700

    completion: fix warnings for cell

 gtksourceview/gtksourcecompletioncell.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
---
diff --git a/gtksourceview/gtksourcecompletioncell.c b/gtksourceview/gtksourcecompletioncell.c
index a2a7356e9..2c2d67a7a 100644
--- a/gtksourceview/gtksourcecompletioncell.c
+++ b/gtksourceview/gtksourcecompletioncell.c
@@ -22,7 +22,7 @@
 #include "config.h"
 
 #include "gtksource-enumtypes.h"
-#include "gtksourcecompletioncell.h"
+#include "gtksourcecompletioncell-private.h"
 
 struct _GtkSourceCompletionCell
 {
@@ -72,6 +72,14 @@ gtk_source_completion_cell_set_column (GtkSourceCompletionCell   *self,
                gtk_widget_add_css_class (GTK_WIDGET (self), "after");
                break;
 
+       case GTK_SOURCE_COMPLETION_COLUMN_COMMENT:
+               gtk_widget_add_css_class (GTK_WIDGET (self), "comment");
+               break;
+
+       case GTK_SOURCE_COMPLETION_COLUMN_DETAILS:
+               gtk_widget_add_css_class (GTK_WIDGET (self), "details");
+               break;
+
        default:
                break;
        }