diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/breakpoint-06.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/breakpoint-06.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+// The argument to a breakpoint hit method is a frame.
+
+var g = newGlobal();
+var dbg = Debugger(g);
+var hits = 0;
+dbg.onDebuggerStatement = function (frame1) {
+    function hit(frame2) {
+        assertEq(frame2, frame1);
+        hits++;
+    }
+    var s = frame1.script;
+    var offs = s.getLineOffsets(g.line0 + 2);
+    for (var i = 0; i < offs.length; i++)
+        s.setBreakpoint(offs[i], {hit: hit});
+};
+g.eval("var line0 = Error().lineNumber;\n" +
+       "debugger;\n" +  // line0 + 1
+       "x = 1;\n");     // line0 + 2
+assertEq(hits, 1);
+assertEq(g.x, 1);