diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Frame-script-02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Frame-script-02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+// |jit-test| debug
+// Frame.prototype.script for call frames.
+
+var g = newGlobal();
+var dbg = new Debugger(g);
+
+// Apply |f| to each frame that is |skip| frames up from each frame that
+// executes a 'debugger' statement when evaluating |code| in the global g.
+function ApplyToFrameScript(code, skip, f) {
+    dbg.onDebuggerStatement = function (frame) {
+        while (skip-- > 0)
+            frame = frame.older;
+        assertEq(frame.type, "call");
+        f(frame.script);
+    };
+    g.eval(code);
+}
+
+ApplyToFrameScript('(function () { debugger; })();', 0,
+                   function (script) {
+                       assertEq(script instanceof Debugger.Script, true);
+                   });
+
+// This would be nice, once we can get host call frames:
+// ApplyToFrameScript("(function () { debugger; }).call(null);", 1,
+//                    function (script) {
+//                        assertEq(script, null);
+//                   });