[anjuta] language-support-vala: bgo #722197 - use an empty list in case of the Vala block context is null

[Abderrahim Kitouni <akitouni src gnome org>]

commit 2a58a8e5e834a3ded5edc56299a07c43e96b48c1
Author: Abderrahim Kitouni <a kitouni gmail com>
Date:   Wed Jul 23 11:47:43 2014 +0100

    language-support-vala: bgo #722197 - use an empty list in case of the Vala block context is null
    
    Add a forgotten nullable

 plugins/language-support-vala/plugin.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/language-support-vala/plugin.vala b/plugins/language-support-vala/plugin.vala
index 97aae74..2cf6829 100644
--- a/plugins/language-support-vala/plugin.vala
+++ b/plugins/language-support-vala/plugin.vala
@@ -526,7 +526,7 @@ public class ValaPlugin : Plugin, IAnjuta.Preferences {
        }
 
        internal List<Vala.Symbol> lookup_symbol (Vala.Expression? inner, string name, bool prefix_match,
-                                                                        Vala.Block block) {
+                                                 Vala.Block? block) {
                var matching_symbols = new List<Vala.Symbol> ();
 
                if (block == null) return matching_symbols;