[gtksourceview] Add callable and insteadof (added in PHP 5.4).

[Ignacio Casal Quinteiro <icq src gnome org>]

commit c78a1edb960994598d13ffda6f1138ea6e1e35a5
Author: Sebastian Bergmann <sb sebastian-bergmann de>
Date:   Wed Mar 21 07:47:17 2012 +0100

    Add callable and insteadof (added in PHP 5.4).

 data/language-specs/php.lang |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/data/language-specs/php.lang b/data/language-specs/php.lang
index 66e84c7..25d362f 100644
--- a/data/language-specs/php.lang
+++ b/data/language-specs/php.lang
@@ -215,6 +215,7 @@
       <keyword>include</keyword>
       <keyword>include_once</keyword>
       <keyword>instanceof</keyword>
+      <keyword>insteadof</keyword>
       <keyword>interface</keyword>
       <keyword>isset</keyword>
       <keyword>list</keyword>
@@ -262,6 +263,7 @@
       <keyword>array</keyword>
       <keyword>bool</keyword>
       <keyword>boolean</keyword>
+      <keyword>callable</keyword>
       <keyword>double</keyword>
       <keyword>float</keyword>
       <keyword>int</keyword>