diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Environment-find-01.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Environment-find-01.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+// find sees that vars are hoisted out of with statements.
+
+var g = newGlobal();
+var dbg = Debugger(g);
+var hits = 0;
+dbg.onDebuggerStatement = function (frame) {
+    assertEq(frame.environment.find("x").type, "with");
+    hits++;
+};
+
+assertEq(g.eval("(function () {\n" +
+                "    function g() { x = 1; }\n" +
+                "    with ({x: 2}) {\n" +
+                "        var x;\n" +
+                "        debugger;\n" +
+                "        return x;\n" +
+                "    }\n" +
+                "})();"), 2);
+assertEq(hits, 1);