diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Memory-01.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Memory-01.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+assertEq(typeof Debugger.Memory, "function");
+let dbg = new Debugger;
+assertEq(dbg.memory instanceof Debugger.Memory, true);
+
+load(libdir + "asserts.js");
+assertThrowsInstanceOf(() => new Debugger.Memory, TypeError);