[gnome-builder] code: add previous deleted flag for buffer line changes

[Christian Hergert <chergert src gnome org>]

commit cffb14057bf4f84d6fb22a01e714881af5669d61
Author: Christian Hergert <chergert redhat com>
Date:   Sun Jan 27 11:48:48 2019 -0800

    code: add previous deleted flag for buffer line changes

 src/libide/code/ide-buffer-change-monitor.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/src/libide/code/ide-buffer-change-monitor.h b/src/libide/code/ide-buffer-change-monitor.h
index 17f03b77a..da6ed9b48 100644
--- a/src/libide/code/ide-buffer-change-monitor.h
+++ b/src/libide/code/ide-buffer-change-monitor.h
@@ -38,10 +38,11 @@ G_DECLARE_DERIVABLE_TYPE (IdeBufferChangeMonitor, ide_buffer_change_monitor, IDE
 
 typedef enum
 {
-  IDE_BUFFER_LINE_CHANGE_NONE    = 0,
-  IDE_BUFFER_LINE_CHANGE_ADDED   = 1 << 0,
-  IDE_BUFFER_LINE_CHANGE_CHANGED = 1 << 1,
-  IDE_BUFFER_LINE_CHANGE_DELETED = 1 << 2,
+  IDE_BUFFER_LINE_CHANGE_NONE             = 0,
+  IDE_BUFFER_LINE_CHANGE_ADDED            = 1 << 0,
+  IDE_BUFFER_LINE_CHANGE_CHANGED          = 1 << 1,
+  IDE_BUFFER_LINE_CHANGE_DELETED          = 1 << 2,
+  IDE_BUFFER_LINE_CHANGE_PREVIOUS_DELETED = 1 << 3,
 } IdeBufferLineChange;
 
 typedef void (*IdeBufferChangeMonitorForeachFunc) (guint               line,