diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Frame-arguments-01.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Frame-arguments-01.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+// Frame.prototype.arguments with primitive values
+
+var g = newGlobal();
+g.args = null;
+var dbg = new Debugger(g);
+var hits;
+var v;
+dbg.onDebuggerStatement = function (frame) {
+    hits++;
+    var args = frame.arguments;
+    assertEq(args instanceof Array, true);
+    assertEq(Array.isArray(args), false);
+    assertEq(args, frame.arguments);
+    assertEq(args.length, g.args.length);
+    for (var i = 0; i < args.length; i++)
+        assertEq(args[i], g.args[i]);
+};
+
+// no formal parameters
+g.eval("function f() { debugger; }");
+
+hits = 0;
+g.eval("args = []; f();");
+g.eval("this.f();");
+g.eval("args = ['hello', 3.14, true, false, null, undefined]; f.apply(undefined, args);");
+g.eval("f('hello', 3.14, true, false, null, undefined);");
+g.eval("args = [-0, NaN, -1/0]; this.f(-0, NaN, -1/0);");
+assertEq(hits, 5);
+
+// with formal parameters
+g.eval("function f(a, b) { debugger; }");
+
+hits = 0;
+g.eval("args = []; f();");
+g.eval("this.f();");
+g.eval("args = ['a', 'b']; f('a', 'b');");
+g.eval("this.f('a', 'b');");
+g.eval("f.bind(null, 'a')('b');");
+assertEq(hits, 5);