diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Environment-getVariable-02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Environment-getVariable-02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+// getVariable works in function scopes.
+
+var g = newGlobal();
+var dbg = Debugger(g);
+var hits = 0;
+dbg.onDebuggerStatement = function (frame) {
+    assertEq(frame.environment.getVariable("a"), 1);
+    assertEq(frame.environment.getVariable("b"), 2);
+    assertEq(frame.environment.getVariable("c"), 3);
+    assertEq(frame.environment.getVariable("d"), 4);
+    assertEq(frame.environment.getVariable("e"), 5);
+    hits++;
+};
+g.eval("function f(a, [b, c]) { var d = c + 1; let e = d + 1; debugger; }");
+g.f(1, [2, 3]);
+assertEq(hits, 1);