diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_7/geniter/regress-366941.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_7/geniter/regress-366941.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,83 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributor: Robert Sayre
+ */
+
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 366941;
+var summary = 'Destructuring enumerations, iterations';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  var list1 = [[1,2],[3,4],[5,6]];
+  var list2 = [[1,2,3],[4,5,6],[7,8,9]];
+
+  expect = '1,2;3,4;5,6;';
+  actual = '';
+
+  for each (var [foo, bar] in list1) {
+    actual += foo + "," + bar + ";";
+  }
+
+  reportCompare(expect, actual, summary + ': 1');
+
+  expect = '1,2,3;4,5,6;7,8,9;';
+  actual = '';
+  for each (var [foo, bar, baz] in list2) {
+    actual += foo + "," + bar + "," + baz + ";";
+  }
+
+  reportCompare(expect, actual, summary + ': 2');
+
+  function gen(list) {
+    for each (var test in list) {
+      yield test;
+    }
+  }
+
+  var iter1 = gen(list1);
+
+  expect = '1,2;3,4;5,6;';
+  actual = '';
+
+  for (var [foo, bar] in iter1) {
+    actual += foo + "," + bar + ";";
+  }
+
+  reportCompare(expect, actual, summary + ': 3');
+
+  // syntax error in js17
+  var iter2 = gen(list2);
+  expect = /SyntaxError: (invalid for.in left-hand side|Left hand side of for..in loop must be an array of length 2 to accept key.value pair.)/;
+  actual = '';
+
+  try
+  {
+    eval('for (var [foo, bar, baz] in iter2) {' +
+         'actual += foo + "," + bar + "," + baz + ";";' + 
+         '}');
+    actual = 'No Error';
+  }
+  catch(ex)
+  {
+    actual = ex + '';
+  }
+ 
+  reportMatch(expect, actual, summary + ': 4');
+
+  exitFunc ('test');
+}