[gnome-builder] ctags: use proper GMappedFile pointer

[Christian Hergert <chergert src gnome org>]

commit 64fb51b657d87b01afbd92d434df3efd67ffe8cf
Author: Christian Hergert <christian hergert me>
Date:   Wed Apr 20 15:24:10 2016 -0700

    ctags: use proper GMappedFile pointer
    
    Fallout from some refactoring causing the wrong mapped file to be checked.

 plugins/ctags/ide-ctags-symbol-resolver.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/plugins/ctags/ide-ctags-symbol-resolver.c b/plugins/ctags/ide-ctags-symbol-resolver.c
index c06b395..1030589 100644
--- a/plugins/ctags/ide-ctags-symbol-resolver.c
+++ b/plugins/ctags/ide-ctags-symbol-resolver.c
@@ -207,7 +207,6 @@ regex_worker (GTask        *task,
 {
   IdeCtagsSymbolResolver *self = source_object;
   LookupSymbol *lookup = task_data;
-  g_autoptr(GMappedFile) mapped = NULL;
   g_autoptr(GRegex) regex = NULL;
   g_autofree gchar *pattern = NULL;
   GMatchInfo *match_info = NULL;
@@ -228,8 +227,8 @@ regex_worker (GTask        *task,
           return;
         }
 
-      data = g_mapped_file_get_contents (mapped);
-      length = g_mapped_file_get_length (mapped);
+      data = g_mapped_file_get_contents (lookup->mapped);
+      length = g_mapped_file_get_length (lookup->mapped);
     }
   else
     {