[libgee/0.6] Fix memory leak in TreeSet and TreeMap

[Maciej Marcin Piechotka <mpiechotka src gnome org>]

commit c9bdc62e0b726137cdf78f2ea60ac59e83759ef7
Author: Maciej Piechotka <uzytkownik2 gmail com>
Date:   Mon Mar 4 17:05:11 2013 +0000

    Fix memory leak in TreeSet and TreeMap

 gee/treemap.vala |    4 ++++
 gee/treeset.vala |    4 ++++
 2 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/gee/treemap.vala b/gee/treemap.vala
index 8b3917e..a300a3e 100644
--- a/gee/treemap.vala
+++ b/gee/treemap.vala
@@ -121,6 +121,10 @@ public class Gee.TreeMap<K,V> : Gee.AbstractMap<K,V> {
                this.value_equal_func = value_equal_func;
        }
 
+       ~TreeMap () {
+               clear ();
+       }
+
        private void rotate_right (ref Node<K, V> root) {
                Node<K,V> pivot = (owned) root.left;
                pivot.color = root.color;
diff --git a/gee/treeset.vala b/gee/treeset.vala
index 3548cf1..d380b87 100644
--- a/gee/treeset.vala
+++ b/gee/treeset.vala
@@ -63,6 +63,10 @@ public class Gee.TreeSet<G> : AbstractSet<G>, SortedSet<G> {
                this.compare_func = compare_func;
        }
 
+       ~TreeSet () {
+               clear ();
+       }
+
        /**
         * { inheritDoc}
         */