[latexila] Remove hack in completion show_no_proposals()

[SÃbastien Wilmet <swilmet src gnome org>]

commit 16f02d7d64efc7121b0731da78df9c8cb0e308b0
Author: SÃbastien Wilmet <swilmet gnome org>
Date:   Wed Feb 13 20:03:31 2013 +0100

    Remove hack in completion show_no_proposals()
    
    This requires the new vapi of GtkSourceView, available in the master
    branch of vala.
    
    Attention, the 0.18 vala branch has a more recent version than the
    master branchâ

 configure.ac        |    2 +-
 src/completion.vala |    5 +----
 2 files changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6682a29..f1788ef 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ LT_INIT
 GLIB_REQUIRED_VERSION="2.32"
 GTK_REQUIRED_VERSION="3.6.0"
 GTKSOURCEVIEW_REQUIRED_VERSION="3.7.3"
-VALA_REQUIRED_VERSION="0.18.0.82"
+VALA_REQUIRED_VERSION="0.18.0.109" # master branch
 
 AC_SUBST([GLIB_REQUIRED_VERSION])
 AC_SUBST([GTK_REQUIRED_VERSION])
diff --git a/src/completion.vala b/src/completion.vala
index e21069c..08b428e 100644
--- a/src/completion.vala
+++ b/src/completion.vala
@@ -252,10 +252,7 @@ public class CompletionProvider : GLib.Object, SourceCompletionProvider
     // It has the same effect as returning false in match().
     private void show_no_proposals (SourceCompletionContext context)
     {
-        // The second argument can not be null so we use a variable...
-        // The vapi should be fixed.
-        List<SourceCompletionItem> empty_proposals = null;
-        context.add_proposals ((SourceCompletionProvider) this, empty_proposals, true);
+        context.add_proposals ((SourceCompletionProvider) this, null, true);
     }
 
     private void show_all_proposals (SourceCompletionContext context)