diff -r 000000000000 -r 6474c204b198 js/src/devtools/gc/tests/objGraph.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/devtools/gc/tests/objGraph.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+test();
+
+function test()
+{
+  function generate_big_object_graph()
+  {
+    var root = {};
+    f(root, 17);
+    return root;
+    function f(parent, depth) {
+      if (depth == 0) 
+          return;
+      --depth;
+
+      f(parent.a = {}, depth);
+      f(parent.b = {}, depth);
+    }
+  }
+
+  function f(obj) {
+    with (obj)
+      return arguments;
+  }
+
+  for(var i = 0; i != 10; ++i) 
+  {
+    gc();
+    var x = null;
+    x = f(generate_big_object_graph());
+
+    gc(); //all used
+
+    x = null;
+
+    gc(); //all free
+  }
+}