Add m-esr52 at 52.6.0

60 files changed, 2636 insertions, 0 deletions

diff --git a/js/src/tests/js1_7/extensions/basic-Iterator.js b/js/src/tests/js1_7/extensions/basic-Iterator.js
new file mode 100644
index 000000000..b35f46d03
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/basic-Iterator.js
@@ -0,0 +1,165 @@
+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER     = "(none)";
+var summary = "Basic support for accessing iterable objects using Iterator";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var failed = false;
+
+function Array_equals(a, b)
+{
+  if (!(a instanceof Array) || !(b instanceof Array))
+    throw new Error("Arguments not both of type Array");
+  if (a.length != b.length)
+    return false;
+  for (var i = 0, sz = a.length; i < sz; i++)
+    if (a[i] !== b[i])
+      return false;
+  return true;
+}
+
+var iterable = { persistedProp: 17 };
+
+try
+{
+  // nothing unusual so far -- verify basic properties
+  for (var i in iterable)
+  {
+    if (i != "persistedProp")
+      throw "no persistedProp!";
+    if (iterable[i] != 17)
+      throw "iterable[\"persistedProp\"] == 17";
+  }
+
+  var keys = ["foo", "bar", "baz"];
+  var vals = [6, 5, 14];
+
+  iterable.__iterator__ =
+    function(keysOnly)
+    {
+      var gen =
+      function()
+      {
+	for (var i = 0; i < keys.length; i++)
+	{
+	  if (keysOnly)
+	    yield keys[i];
+	  else
+	    yield [keys[i], vals[i]];
+	}
+      };
+      return gen();
+    };
+
+  /* Test [key, value] Iterator */
+  var index = 0;
+  var lastSeen = "INITIALVALUE";
+  var it = Iterator(iterable);
+  try
+  {
+    while (true)
+    {
+      var nextVal = it.next();
+      if (!Array_equals(nextVal, [keys[index], vals[index]]))
+        throw "Iterator(iterable): wrong next result\n" +
+	  "  expected: " + [keys[index], vals[index]] + "\n" +
+	  "  actual:   " + nextVal;
+      lastSeen = keys[index];
+      index++;
+    }
+  }
+  catch (e)
+  {
+    if (lastSeen !== keys[keys.length - 1])
+      throw "Iterator(iterable): not everything was iterated!\n" +
+	"  last iterated was: " + lastSeen + "\n" +
+	"  error: " + e;
+    if (e !== StopIteration)
+      throw "Iterator(iterable): missing or invalid StopIteration";
+  }
+
+  if (iterable.persistedProp != 17)
+    throw "iterable.persistedProp not persisted!";
+
+  /* Test [key, value] Iterator, called with an explicit |false| parameter */
+  var index = 0;
+  lastSeen = "INITIALVALUE";
+  it = Iterator(iterable, false);
+  try
+  {
+    while (true)
+    {
+      var nextVal = it.next();
+      if (!Array_equals(nextVal, [keys[index], vals[index]]))
+        throw "Iterator(iterable, false): wrong next result\n" +
+	  "  expected: " + [keys[index], vals[index]] + "\n" +
+	  "  actual:   " + nextVal;
+      lastSeen = keys[index];
+      index++;
+    }
+  }
+  catch (e)
+  {
+    if (lastSeen !== keys[keys.length - 1])
+      throw "Iterator(iterable, false): not everything was iterated!\n" +
+	"  last iterated was: " + lastSeen + "\n" +
+	"  error: " + e;
+    if (e !== StopIteration)
+      throw "Iterator(iterable, false): missing or invalid StopIteration";
+  }
+
+  if (iterable.persistedProp != 17)
+    throw "iterable.persistedProp not persisted!";
+
+  /* Test key-only Iterator */
+  index = 0;
+  lastSeen = undefined;
+  it = Iterator(iterable, true);
+  try
+  {
+    while (true)
+    {
+      var nextVal = it.next();
+      if (nextVal !== keys[index])
+        throw "Iterator(iterable, true): wrong next result\n" +
+	  "  expected: " + keys[index] + "\n" +
+	  "  actual:   " + nextVal;
+      lastSeen = keys[index];
+      index++;
+    }
+  }
+  catch (e)
+  {
+    if (lastSeen !== keys[keys.length - 1])
+      throw "Iterator(iterable, true): not everything was iterated!\n" +
+	"  last iterated was: " + lastSeen + "\n" +
+	"  error: " + e;
+    if (e !== StopIteration)
+      throw "Iterator(iterable, true): missing or invalid StopIteration";
+  }
+
+  if (iterable.persistedProp != 17)
+    throw "iterable.persistedProp not persisted!";
+}
+catch (e)
+{
+  failed = e;
+}
+
+
+
+expect = false;
+actual = failed;
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/basic-for-each.js b/js/src/tests/js1_7/extensions/basic-for-each.js
new file mode 100644
index 000000000..8b3097d4b
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/basic-for-each.js
@@ -0,0 +1,90 @@
+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER     = "346582";
+var summary = "Basic support for iterable objects and for-each";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var failed = false;
+
+var iterable = { persistedProp: 17 };
+
+function Array_equals(a, b)
+{
+  if (!(a instanceof Array) || !(b instanceof Array))
+    throw new Error("Arguments not both of type Array");
+  if (a.length != b.length)
+    return false;
+  for (var i = 0, sz = a.length; i < sz; i++)
+    if (a[i] !== b[i])
+      return false;
+  return true;
+}
+
+try
+{
+  // nothing unusual so far -- verify basic properties
+  for (var i in iterable)
+  {
+    if (i != "persistedProp")
+      throw "no persistedProp!";
+    if (iterable[i] != 17)
+      throw "iterable[\"persistedProp\"] == 17";
+  }
+
+  var keys = ["foo", "bar", "baz"];
+  var vals = [6, 5, 14];
+
+  iterable.__iterator__ =
+    function(keysOnly)
+    {
+      var gen =
+      function()
+      {
+	for (var i = 0; i < keys.length; i++)
+	{
+	  if (keysOnly)
+	    yield keys[i];
+	  else
+	    yield [keys[i], vals[i]];
+	}
+      };
+      return gen();
+    };
+
+  // for each sets keysOnly==false
+  var index = 0;
+  for each (var v in iterable)
+  {
+    if (!Array_equals(v, [keys[index], vals[index]]))
+      throw "for-each iteration failed on index=" + index + "!";
+    index++;
+  }
+  if (index != keys.length)
+    throw "not everything iterated!  index=" + index +
+      ", keys.length=" + keys.length;
+
+  if (iterable.persistedProp != 17)
+    throw "iterable.persistedProp not persisted!";
+}
+catch (e)
+{
+  failed = e;
+}
+
+
+
+expect = false;
+actual = failed;
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/basic-for-in.js b/js/src/tests/js1_7/extensions/basic-for-in.js
new file mode 100644
index 000000000..d50aa5cbe
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/basic-for-in.js
@@ -0,0 +1,78 @@
+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER     = "346582";
+var summary = "Basic support for iterable objects and for-in";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var failed = false;
+
+var iterable = { persistedProp: 17 };
+
+try
+{
+  // nothing unusual so far -- verify basic properties
+  for (var i in iterable)
+  {
+    if (i != "persistedProp")
+      throw "no persistedProp!";
+    if (iterable[i] != 17)
+      throw "iterable[\"persistedProp\"] == 17";
+  }
+
+  var keys = ["foo", "bar", "baz"];
+  var vals = [6, 5, 14];
+
+  iterable.__iterator__ =
+    function(keysOnly)
+    {
+      var gen =
+      function()
+      {
+	for (var i = 0; i < keys.length; i++)
+	{
+	  if (keysOnly)
+	    yield keys[i];
+	  else
+	    yield [keys[i], vals[i]];
+	}
+      };
+      return gen();
+    };
+
+  // for in sets keysOnly==true
+  var index = 0;
+  for (var k in iterable)
+  {
+    if (k != keys[index])
+      throw "for-in iteration failed on keys[\"" + index + "\"]";
+    index++;
+  }
+  if (index != keys.length)
+    throw "not everything iterated!  index=" + index +
+      ", keys.length=" + keys.length;
+
+  if (iterable.persistedProp != 17)
+    throw "iterable.persistedProp not persisted!";
+}
+catch (e)
+{
+  failed = e;
+}
+
+
+
+expect = false;
+actual = failed;
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/browser.js b/js/src/tests/js1_7/extensions/browser.js
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/browser.js
diff --git a/js/src/tests/js1_7/extensions/destructuring-order.js b/js/src/tests/js1_7/extensions/destructuring-order.js
new file mode 100644
index 000000000..72bba5b09
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/destructuring-order.js
@@ -0,0 +1,152 @@
+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER     = "(none)";
+var summary = "Order of destructuring, destructuring in the presence of " +
+  "exceptions";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var failed = false;
+
+
+var a = "FAILED", b = "PASSED";
+
+function exceptObj()
+{
+  return { get b() { throw "PASSED"; }, a: "PASSED" };
+}
+
+function partialEvalObj()
+{
+  try
+  {
+    ({a:a, b:b} = exceptObj());
+    throw "FAILED";
+  }
+  catch (ex)
+  {
+    if (ex !== "PASSED")
+      throw "bad exception thrown: " + ex;
+  }
+}
+
+
+var c = "FAILED", d = "FAILED", e = "PASSED", f = "PASSED";
+
+function exceptArr()
+{
+  return ["PASSED", {e: "PASSED", get f() { throw "PASSED"; }}, "FAILED"];
+}
+
+function partialEvalArr()
+{
+  try
+  {
+    [c, {e: d, f: e}, f] = exceptArr();
+    throw "FAILED";
+  }
+  catch (ex)
+  {
+    if (ex !== "PASSED")
+      throw "bad exception thrown: " + ex;
+  }
+}
+
+
+var g = "FAILED", h = "FAILED", i = "FAILED", j = "FAILED", k = "FAILED";
+var _g = "PASSED", _h = "FAILED", _i = "FAILED", _j = "FAILED", _k = "FAILED";
+var order = [];
+
+function objWithGetters()
+{
+  return {
+    get j()
+    {
+      var rv = _j;
+      _g = _h = _i = _j = "FAILED";
+      _k = "PASSED";
+      order.push("j");
+      return rv;
+    },
+      get g()
+      {
+	var rv = _g;
+	_g = _i = _j = _k = "FAILED";
+	_h = "PASSED";
+	order.push("g");
+	return rv;
+      },
+	get i()
+	{
+	  var rv = _i;
+	  _g = _h = _i = _k = "FAILED";
+	  _j = "PASSED";
+	  order.push("i");
+	  return rv;
+	},
+	  get k()
+	  {
+	    var rv = _k;
+	    _g = _h = _i = _j = _k = "FAILED";
+	    order.push("k");
+	    return rv;
+	  },
+	    get h()
+	    {
+	      var rv = _h;
+	      _g = _h = _j = _k = "FAILED";
+	      _i = "PASSED";
+	      order.push("h");
+	      return rv;
+	    }
+  };
+}
+
+function partialEvalObj2()
+{
+  ({g: g, h: h, i: i, j: j, k: k} = objWithGetters());
+}
+
+try
+{
+  partialEvalObj();
+  if (a !== "PASSED" || b !== "PASSED")
+    throw "FAILED: lhs not mutated correctly during destructuring!\n" +
+      "a == " + a + ", b == " + b;
+
+  partialEvalObj2();
+  if (g !== "PASSED" ||
+      h !== "PASSED" ||
+      i !== "PASSED" ||
+      j !== "PASSED" ||
+      k !== "PASSED")
+    throw "FAILED: order of property accesses wrong!\n" +
+      "order == " + order;
+
+  partialEvalArr();
+  if (c !== "PASSED" || d !== "PASSED" || e !== "PASSED")
+    throw "FAILED: lhs not mutated correctly during destructuring!\n" +
+      "c == " + c +
+      ", d == " + d +
+      ", e == " + e +
+      ", f == " + f ;
+}
+catch (ex)
+{
+  failed = ex;
+}
+
+expect = false;
+actual = failed;
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/iterator-ctor.js b/js/src/tests/js1_7/extensions/iterator-ctor.js
new file mode 100644
index 000000000..92d3347cf
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/iterator-ctor.js
@@ -0,0 +1,102 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// See http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Guide:Iterators_and_Generators
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER  = "410725";
+var summary = "Test of the global Iterator constructor";
+var actual, expect;
+
+printBugNumber(BUGNUMBER);
+printStatus(summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+function iteratorToArray(iterator) {
+  var result = [];
+  for (var i in iterator) {
+    result[result.length] = i;
+  }
+  return result.sort();
+}
+
+var obj = {a:1, b:2};
+
+reportCompare('["a", "b"]',
+              uneval(iteratorToArray(obj)),
+              'uneval(iteratorToArray(obj))');
+
+reportCompare('[["a", 1], ["b", 2]]',
+              uneval(iteratorToArray(Iterator(obj))),
+              'uneval(iteratorToArray(Iterator(obj)))');
+
+reportCompare('[["a", 1], ["b", 2]]',
+              uneval(iteratorToArray(new Iterator(obj))),
+              'uneval(iteratorToArray(new Iterator(obj)))');
+
+reportCompare('[["a", 1], ["b", 2]]',
+              uneval(iteratorToArray(Iterator(obj,false))),
+              'uneval(iteratorToArray(Iterator(obj,false)))');
+
+reportCompare('[["a", 1], ["b", 2]]',
+              uneval(iteratorToArray(new Iterator(obj,false))),
+              'uneval(iteratorToArray(new Iterator(obj,false)))');
+
+reportCompare('["a", "b"]',
+              uneval(iteratorToArray(Iterator(obj,true))),
+              'uneval(iteratorToArray(Iterator(obj,true)))');
+
+reportCompare('["a", "b"]',
+              uneval(iteratorToArray(new Iterator(obj,true))),
+              'uneval(iteratorToArray(new Iterator(obj,true)))');
+
+var flag;
+var obji = {a:1, b:2};
+obji.__iterator__ = function (b) { flag = b; yield -1; yield -2; }
+
+flag = -1;
+reportCompare('[-1, -2]',
+              uneval(iteratorToArray(obji)),
+              'uneval(iteratorToArray(obji))');
+reportCompare(true, flag, 'uneval(iteratorToArray(obji)) flag');
+
+flag = -1;
+reportCompare('[-1, -2]',
+              uneval(iteratorToArray(Iterator(obji))),
+              'uneval(iteratorToArray(Iterator(obji)))');
+reportCompare(false, flag, 'uneval(iteratorToArray(Iterator(obji))) flag');
+
+flag = -1;
+reportCompare('[-1, -2]',
+              uneval(iteratorToArray(new Iterator(obji))),
+              'uneval(iteratorToArray(new Iterator(obji)))');
+reportCompare(false, flag, 'uneval(iteratorToArray(new Iterator(obji))) flag');
+
+flag = -1;
+reportCompare('[-1, -2]',
+              uneval(iteratorToArray(Iterator(obji,false))),
+              'uneval(iteratorToArray(Iterator(obji,false)))');
+reportCompare(false, flag, 'uneval(iteratorToArray(Iterator(obji,false))) flag');
+
+flag = -1;
+reportCompare('[-1, -2]',
+              uneval(iteratorToArray(new Iterator(obji,false))),
+              'uneval(iteratorToArray(new Iterator(obji,false)))');
+reportCompare(false, flag, 'uneval(iteratorToArray(new Iterator(obji,false))) flag');
+
+flag = -1;
+reportCompare('[-1, -2]',
+              uneval(iteratorToArray(Iterator(obji,true))),
+              'uneval(iteratorToArray(Iterator(obji,true)))');
+reportCompare(true, flag, 'uneval(iteratorToArray(Iterator(obji,true))) flag');
+
+flag = -1;
+reportCompare('[-1, -2]',
+              uneval(iteratorToArray(new Iterator(obji,true))),
+              'uneval(iteratorToArray(new Iterator(obji,true)))');
+reportCompare(true, flag, 'uneval(iteratorToArray(new Iterator(obji,true))) flag');
diff --git a/js/src/tests/js1_7/extensions/regress-346021.js b/js/src/tests/js1_7/extensions/regress-346021.js
new file mode 100644
index 000000000..e8849aae3
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-346021.js
@@ -0,0 +1,45 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 346021;
+var summary = 'Implementing __iterator__ as generator';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var o = { __iterator__: function () { print(12); yield 42; } };
+
+  expect = 42;
+  actual = 0;
+ 
+  for (let i in Iterator(o))
+  {
+    actual = i;
+  }
+
+  reportCompare(expect, actual, summary);
+
+  actual = 0;
+
+  for (let i in o)
+  {
+    actual = i; // this doesn't iterate 42
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-346642-06.js b/js/src/tests/js1_7/extensions/regress-346642-06.js
new file mode 100644
index 000000000..e7664eab5
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-346642-06.js
@@ -0,0 +1,62 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 346642;
+var summary = 'decompilation of destructuring assignment';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  expect = 3;
+  actual = '';
+  "" + function() { [] = 3 }; actual = 3;
+  actual = 3;
+  reportCompare(expect, actual, summary + ': 1');
+
+  try
+  {
+    var z = 6;
+    var f = eval('(function (){for(let [] = []; false;) let z; return z})');
+    expect =  f();
+    actual = eval("("+f+")")()
+      reportCompare(expect, actual, summary + ': 2');
+  }
+  catch(ex)
+  {
+    // See https://bugzilla.mozilla.org/show_bug.cgi?id=408957
+    var summarytrunk = 'let declaration must be direct child of block or top-level implicit block';
+    expect = 'SyntaxError';
+    actual = ex.name;
+    reportCompare(expect, actual, summarytrunk);
+  }
+
+  expect = 3;
+  actual = '';
+  "" + function () { for(;; [[a]] = [5]) { } }; actual = 3;
+  reportCompare(expect, actual, summary + ': 3');
+
+  expect = 3;
+  actual = '';
+  "" + function () { for(;; ([[,]] = p)) { } }; actual = 3;
+  reportCompare(expect, actual, summary + ': 4');
+
+  expect = 3;
+  actual = '';
+  actual = 1; try {for(x in (function ([y]) { })() ) { }}catch(ex){} actual = 3;
+  reportCompare(expect, actual, summary + ': 5');
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-346773.js b/js/src/tests/js1_7/extensions/regress-346773.js
new file mode 100644
index 000000000..3faa2c73f
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-346773.js
@@ -0,0 +1,52 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 346773;
+var summary = 'Do not crash compiling with misplaced brances in function';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  try
+  {
+    var src =
+      '    var it = {foo:"5"};' +
+      '    it.__iterator__ =' +
+      '      function(valsOnly)' +
+      '      {' +
+      '        var gen =' +
+      '        function()' +
+      '        {' +
+      '          for (var i = 0; i < keys.length; i++)' +
+      '          {' +
+      '            if (valsOnly)' +
+      '              yield vals[i];' +
+      '            else' +
+      '              yield [keys[i], vals[i]];' +
+      '          }' +
+      '          return gen();' +
+      '        }' +
+      '      }';
+    eval(src);
+  }
+  catch(ex)
+  {
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-350312.js b/js/src/tests/js1_7/extensions/regress-350312.js
new file mode 100644
index 000000000..4da03648c
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-350312.js
@@ -0,0 +1,80 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 350312;
+var summary = 'Accessing wrong stack slot with nested catch/finally';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  var iter;
+  function gen()
+  {
+    try {
+      yield iter;
+    } catch (e if e == null) {
+      actual += 'CATCH,';
+      print("CATCH");
+    } finally {
+      actual += 'FINALLY';
+      print("FINALLY");
+    }
+  }
+
+  expect = 'FINALLY';
+  actual = '';
+  (iter = gen()).next().close();
+  reportCompare(expect, actual, summary);
+
+  expect = 'FINALLY';
+  actual = '';
+  try
+  {
+    (iter = gen()).next().throw(1);
+  }
+  catch(ex)
+  {
+  }
+  reportCompare(expect, actual, summary);
+
+  expect = 'CATCH,FINALLY';
+  actual = '';
+  try
+  {
+    (iter = gen()).next().throw(null);
+  }
+  catch(ex)
+  {
+  }
+  reportCompare(expect, actual, summary);
+
+  expect = 'FINALLY';
+  actual = '';
+  var expectexcp = '[object StopIteration]';
+  var actualexcp = '';
+  try
+  {
+    (iter = gen()).next().next();     
+  }
+  catch(ex)
+  {
+    actualexcp = ex + '';
+  }
+  reportCompare(expect, actual, summary);
+  reportCompare(expectexcp, actualexcp, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-351070-02.js b/js/src/tests/js1_7/extensions/regress-351070-02.js
new file mode 100644
index 000000000..b478da195
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-351070-02.js
@@ -0,0 +1,69 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 351070;
+var summary = 'decompilation of let declaration should not change scope';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  try
+  {
+    var pfx  = "(function f() { var n = 2, a = 2; ",
+      decl = " let a = 3;",
+      end  = " return a; })";
+
+    var table = [
+      ["if (!!true)",       ""],
+      ["if (!!true)",       " else foopy();"],
+      ["if (!true); else",  ""],
+      ["do ",               " while (false);"],
+      ["while (--n)",       ""],
+      ["for (--n;n;--n)",   ""],
+      ["for (a in this)",   ""],
+      ["with (this)",       ""],
+      ];
+
+    expect = 3;
+
+    for (i = 0; i < table.length; i++) {
+      var src = pfx + table[i][0] + decl + table[i][1] + end;
+      print('src: ' + src);
+      var fun = eval(src);
+      var testval = fun();
+      reportCompare(expect, testval, summary + ': ' + src);
+      if (testval != expect) {
+        break;
+      }
+      print('uneval: ' + uneval(fun));
+      var declsrc = '(' +
+        src.slice(1, -1).replace('function f', 'function f' + i) + ')';
+      print('declsrc: ' + declsrc);
+      this['f' + i] = eval(declsrc);
+      print('f' + i + ': ' + this['f' + i]);
+    }
+  }
+  catch(ex)
+  {
+    // See https://bugzilla.mozilla.org/show_bug.cgi?id=408957
+    summary = 'let declaration must be direct child of block or top-level implicit block';
+    expect = 'SyntaxError';
+    actual = ex.name;
+    reportCompare(expect, actual, summary);
+  }
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-351102-03.js b/js/src/tests/js1_7/extensions/regress-351102-03.js
new file mode 100644
index 000000000..5790cfab8
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-351102-03.js
@@ -0,0 +1,43 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 351102;
+var summary = 'try/catch-guard/finally GC issues';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var f;
+  f = function()
+    {
+      try
+      {
+        d.d.d;
+      }
+      catch({} if gc())
+      {
+      }
+      catch(y)
+      {
+      }
+    };
+
+  f();
+  f();
+
+  reportCompare(expect, actual, summary + ': 3');
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-351102-04.js b/js/src/tests/js1_7/extensions/regress-351102-04.js
new file mode 100644
index 000000000..716454160
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-351102-04.js
@@ -0,0 +1,35 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 351102;
+var summary = 'try/catch-guard/finally GC issues';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var f;
+  try
+  {
+    try { foo() } catch([] if gc()) { }
+  }
+  catch(ex)
+  {
+  }
+  reportCompare(expect, actual, summary + ': 4');
+
+  exitFunc ('test');
+}
+
diff --git a/js/src/tests/js1_7/extensions/regress-351102-05.js b/js/src/tests/js1_7/extensions/regress-351102-05.js
new file mode 100644
index 000000000..32b3d39e6
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-351102-05.js
@@ -0,0 +1,34 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 351102;
+var summary = 'try/catch-guard/finally GC issues';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var f;
+  try
+  {
+    try { d.d.d } catch([] if gc()) { }
+  }
+  catch(ex)
+  {
+  }
+  reportCompare(expect, actual, summary + ': 5');
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-351102-07.js b/js/src/tests/js1_7/extensions/regress-351102-07.js
new file mode 100644
index 000000000..16a6f18fe
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-351102-07.js
@@ -0,0 +1,43 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 351102;
+var summary = 'try/catch-guard/finally GC issues';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var f;
+  var obj = { get a() {
+      try {
+        throw 1;
+      } catch (e) {
+      }
+      return false;
+    }};
+
+  try {
+    throw obj;
+  } catch ({a: a} if a) {
+    throw "Unreachable";
+  } catch (e) {
+    if (e !== obj)
+      throw "Unexpected exception: "+uneval(e);
+  }
+  reportCompare(expect, actual, summary + ': 7');
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-352797-01.js b/js/src/tests/js1_7/extensions/regress-352797-01.js
new file mode 100644
index 000000000..cb3c98f59
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-352797-01.js
@@ -0,0 +1,35 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 352797;
+var summary = 'Do not assert: OBJ_GET_CLASS(cx, obj) == &js_BlockClass';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  if (typeof Script == 'undefined')
+  {
+    print('Test skipped. Script not defined.');
+  }
+  else
+  {
+    (function(){let x = 'fafafa'.replace(/a/g, new Script(''))})();
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-352885-01.js b/js/src/tests/js1_7/extensions/regress-352885-01.js
new file mode 100644
index 000000000..9210f17a7
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-352885-01.js
@@ -0,0 +1,29 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 352885;
+var summary = 'Do not crash iterating over gen.__proto__';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  for (j in ((function() { yield 3; })().__proto__))
+    print(j);
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-352885-02.js b/js/src/tests/js1_7/extensions/regress-352885-02.js
new file mode 100644
index 000000000..d243813f9
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-352885-02.js
@@ -0,0 +1,67 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 352885;
+var summary = 'Do not crash iterating over gen.__proto__';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  function dotest()
+  {
+    var proto = (function() { yield 3; })().__proto__;
+
+    try {
+      proto.next();
+      throw "generatorProto.next() does not throw TypeError";
+    } catch (e) {
+      if (!(e instanceof TypeError))
+        throw "generatorProto.next() throws unexpected exception: "+uneval(e);
+    }
+
+    try {
+      proto.send();
+      throw "generatorProto.send() does not throw TypeError";
+    } catch (e) {
+      if (!(e instanceof TypeError))
+        throw "generatorProto.send() throws unexpected exception: "+uneval(e);
+    }
+
+    var obj = {};
+    try {
+      proto.throw(obj);
+      throw "generatorProto.throw(obj) does not throw TypeError";
+    } catch (e) {
+      if (!(e instanceof TypeError))
+        throw "generatorProto.throw() throws unexpected exception: "+uneval(e);
+    }
+
+    try {
+      proto.close();
+      throw "generatorProto.close() does not throw TypeError";
+    } catch (e) {
+      if (!(e instanceof TypeError))
+        throw "generatorProto.close() throws unexpected exception: "+uneval(e);
+    }
+
+  }
+
+  dotest();
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-353214-01.js b/js/src/tests/js1_7/extensions/regress-353214-01.js
new file mode 100644
index 000000000..bd0cbb676
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-353214-01.js
@@ -0,0 +1,47 @@
+// |reftest| skip -- obsolete test
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 353214;
+var summary = 'bug 353214';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var f = function () {
+    switch(({ get x() { export *; }, set x([[y], [x] ]) { let x; } })) {
+      case eval("[[1]]", function(id) { return id; }):
+      L:for(let x in (((eval).call)(eval("yield <x><y/></x>;",  "" ))))var x;
+      case (uneval(this)):
+      import x.*;
+    }
+  }
+
+  expect = 'function () { ' +
+    'switch({ get x() { export *; }, set x([[y], [x] ]) { let x; } }) {  ' +
+    'case eval("[[1]]", function(id) { return id; }):  ' +
+    'L:for(let x in eval.call(eval("yield <x><y/></x>;",  "" ))){var x;} ' +
+    'case uneval(this):  ' +
+    'import x.*;  default:;' +
+    '} ' +
+    '}';
+
+  actual = f + '';
+
+  compareSource(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-353249.js b/js/src/tests/js1_7/extensions/regress-353249.js
new file mode 100644
index 000000000..8bc5ed931
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-353249.js
@@ -0,0 +1,35 @@
+// |reftest| skip -- obsolete test
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 353249;
+var summary = 'regression test for bug 353249';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var f = (function () { let (x) <x/>.(1) < let (z) eval('3');
+	     for (x in this) {} });
+
+  expect = 'function () { (let (x) <x/>.((1)) < (let (z) eval("3"))); ' +
+    'for (x in this) {} }';
+  actual = f + '';
+  compareSource(expect, actual, summary);
+
+  // do not crash()
+  f();
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-354499-01.js b/js/src/tests/js1_7/extensions/regress-354499-01.js
new file mode 100644
index 000000000..6a9ae40b9
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-354499-01.js
@@ -0,0 +1,46 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 354499;
+var summary = 'Iterating over Array elements';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  expect = actual = 'No Crash';
+
+  var obj = {get a(){ return new Object(); }};
+
+  function setter(v)
+  {
+    // Push out obj.a from all temp roots
+    var tmp = { get toString() { return new Object(); }};
+    try { String(tmp); } catch (e) {  }
+    gc();
+  }
+
+  Array.prototype.__defineGetter__(0, function() { });
+  Array.prototype.__defineSetter__(0, setter);
+
+  for (var i in Iterator(obj))
+    print(uneval(i));
+
+  delete Array.prototype[0];
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-354499-02.js b/js/src/tests/js1_7/extensions/regress-354499-02.js
new file mode 100644
index 000000000..8f5c62918
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-354499-02.js
@@ -0,0 +1,49 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 354499;
+var summary = 'Iterating over Array elements';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  expect = actual = 'No Crash';
+
+  function get_value()
+  {
+    // Unroot the first element
+    this[0] = 0;
+
+    // Call gc to collect atom corresponding to Math.sqrt(2)
+    gc();
+  }
+
+  var counter = 2;
+  Iterator.prototype.next = function()
+    {
+      if (counter-- <= 0) throw StopIteration;
+      var a = [Math.sqrt(2), 1];
+      a.__defineGetter__(1, get_value);
+      return a;
+    };
+
+  for (i in [1])
+    ;
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-354945-01.js b/js/src/tests/js1_7/extensions/regress-354945-01.js
new file mode 100644
index 000000000..76f1a3c82
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-354945-01.js
@@ -0,0 +1,34 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 354945;
+var summary = 'Do not crash with new Iterator';
+var expect = 'TypeError: trap __iterator__ for ({__iterator__:(function (){ })}) returned a primitive value';
+var actual;
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  try {
+    var obj = {};
+    obj.__iterator__ = function(){ };
+    for(t in (new Iterator(obj))) { }
+  } catch (ex) {
+    actual = ex.toString();
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-354945-02.js b/js/src/tests/js1_7/extensions/regress-354945-02.js
new file mode 100644
index 000000000..261bf7de1
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-354945-02.js
@@ -0,0 +1,38 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 354945;
+var summary = 'Do not crash with new Iterator';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  expect = 'TypeError: trap __iterator__ for ({__iterator__:(function (){ })}) returned a primitive value';
+  var obj = {};
+  obj.__iterator__ = function(){ };
+  try
+  {
+    for(t in (obj)) { }
+  }
+  catch(ex)
+  {
+    actual = ex + '';
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-355052-01.js b/js/src/tests/js1_7/extensions/regress-355052-01.js
new file mode 100644
index 000000000..ea5f5d7d7
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-355052-01.js
@@ -0,0 +1,37 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 355052;
+var summary = 'Do not crash with valueOf:gc and __iterator__';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  expect = /TypeError: .+ is not a function/;
+  actual = 'No Error';
+  try
+  {
+    ( {valueOf: gc} - [function(){}].__iterator__ )();
+  }
+  catch(ex)
+  {
+    actual = ex + '';
+  }
+
+  reportMatch(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-355052-02.js b/js/src/tests/js1_7/extensions/regress-355052-02.js
new file mode 100644
index 000000000..57d06153e
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-355052-02.js
@@ -0,0 +1,37 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 355052;
+var summary = 'Do not crash with valueOf:gc and __iterator__';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  expect = /TypeError: .+ is not a function/;
+  actual = 'No Error';
+  try
+  {
+    ( {valueOf: gc} - [].a )();
+  }
+  catch(ex)
+  {
+    actual = ex + '';
+  }
+
+  reportMatch(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-355052-03.js b/js/src/tests/js1_7/extensions/regress-355052-03.js
new file mode 100644
index 000000000..e987101fb
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-355052-03.js
@@ -0,0 +1,43 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 355052;
+var summary = 'Do not crash with valueOf:gc and __iterator__';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  expect = /TypeError: .+ is not a function/;
+  actual = 'No Error';
+  try
+  {
+    var obj = {valueOf: gc };
+
+    function f() {
+      ( obj * [].a )();
+    }
+
+    f();
+  }
+  catch(ex)
+  {
+    actual = ex + '';
+  }
+
+  reportMatch(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-355410.js b/js/src/tests/js1_7/extensions/regress-355410.js
new file mode 100644
index 000000000..6b00b704f
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-355410.js
@@ -0,0 +1,40 @@
+/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 355410;
+var summary = 'GC hazard in for([k,v] in o){...}';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  var address = 0xbadf00d0, basket = { food: {} };
+  var AP = Array.prototype, rooter = {};
+  AP.__defineGetter__(0, function() { return this[-1]; });
+  AP.__defineSetter__(0, function(v) {
+			basket.food = null;
+			for(var i = 0; i < 8 * 1024; i++) {
+			  rooter[i] = 0x10000000000000 + address; // IEEE754!
+			}
+			return this[-1] = v;
+		      });
+  for(var [key, value] in basket) { value.trigger; }
+
+  delete Array.prototype[0];
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-355512.js b/js/src/tests/js1_7/extensions/regress-355512.js
new file mode 100644
index 000000000..554242382
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-355512.js
@@ -0,0 +1,38 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 355512;
+var summary = 'Do not crash with generator arguments';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  function foopy()
+  {
+    var f = function(){ r = arguments; d.d.d; yield 170; }
+    try { for (var i in f()) { } } catch (iterError) { }  
+  }
+
+  typeof uneval;
+  foopy();
+  gc();
+  uneval(r);
+  gc();
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-363040-01.js b/js/src/tests/js1_7/extensions/regress-363040-01.js
new file mode 100644
index 000000000..5b89b4e81
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-363040-01.js
@@ -0,0 +1,65 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 363040;
+var summary = 'Array.prototype.reduce application in continued fraction';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+// Print x as a continued fraction in compact abbreviated notation and return
+// the convergent [n, d] such that x - (n / d) <= epsilon.
+  function contfrac(x, epsilon) {
+    let i = Math.floor(x);
+    let a = [i];
+    x = x - i;
+    let maxerr = x;
+    while (maxerr > epsilon) {
+      x = 1 / x;
+      i = Math.floor(x);
+      a.push(i);
+      x = x - i;
+      maxerr = x * maxerr / i;
+    }
+    print(uneval(a));
+    a.push([1, 0]);
+    a.reverse();
+    return a.reduce(function (x, y) {return [x[0] * y + x[1], x[0]];});
+  }
+
+  if (!Array.prototype.reduce)
+  {
+    print('Test skipped. Array.prototype.reduce not implemented');
+  }
+  else
+  {
+// Show contfrac in action.
+    for each (num in [Math.PI, Math.sqrt(2), 1 / (Math.sqrt(Math.E) - 1)]) {
+      print('Continued fractions for', num);
+      for each (eps in [1e-2, 1e-3, 1e-5, 1e-7, 1e-10]) {
+        let frac = contfrac(num, eps);
+        let est = frac[0] / frac[1];
+        let err = num - est;
+        print(uneval(frac), est, err);
+      }
+      print();
+    }
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-363040-02.js b/js/src/tests/js1_7/extensions/regress-363040-02.js
new file mode 100644
index 000000000..ea163790a
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-363040-02.js
@@ -0,0 +1,64 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 363040;
+var summary = 'Array.prototype.reduce application in continued fraction';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+
+// Print x as a continued fraction in compact abbreviated notation and return
+// the convergent [n, d] such that x - (n / d) <= epsilon.
+  function contfrac(x, epsilon) {
+    let i = Math.floor(x);
+    let a = [i];
+    x = x - i;
+    let maxerr = x;
+    while (maxerr > epsilon) {
+      x = 1 / x;
+      i = Math.floor(x);
+      a.push(i);
+      x = x - i;
+      maxerr = x * maxerr / i;
+    }
+    print(uneval(a));
+    return a.reduceRight(function (x, y) {return [x[0] * y + x[1], x[0]];}, [1, 0]);
+  }
+
+  if (!Array.prototype.reduceRight)
+  {
+    print('Test skipped. Array.prototype.reduceRight not implemented');
+  }
+  else
+  {
+// Show contfrac in action on some interesting numbers.
+    for each (num in [Math.PI, Math.sqrt(2), 1 / (Math.sqrt(Math.E) - 1)]) {
+      print('Continued fractions for', num);
+      for each (eps in [1e-2, 1e-3, 1e-5, 1e-7, 1e-10]) {
+        let frac = contfrac(num, eps);
+        let est = frac[0] / frac[1];
+        let err = num - est;
+        print(uneval(frac), est, err);
+      }
+      print();
+    }
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-366668-01.js b/js/src/tests/js1_7/extensions/regress-366668-01.js
new file mode 100644
index 000000000..92d01e800
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-366668-01.js
@@ -0,0 +1,31 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 366668;
+var summary = 'decompilation of "for (let x in x.p)" ';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var f;
+
+  f = function() { for(let x in x.p) { } };
+  expect = 'function() { for(let x in x.p) { } }';
+  actual = f + '';
+  compareSource(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-367629.js b/js/src/tests/js1_7/extensions/regress-367629.js
new file mode 100644
index 000000000..7808701cb
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-367629.js
@@ -0,0 +1,38 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 367629;
+var summary = 'Decompilation of result with native function as getter';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var a =
+    Object.defineProperty({}, "h",
+    {
+      get: encodeURI,
+      enumerable: true,
+      configurable: true
+    });
+
+  expect = '({get h() {[native code]}})';
+  actual = uneval(a);      
+
+  compareSource(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-368213.js b/js/src/tests/js1_7/extensions/regress-368213.js
new file mode 100644
index 000000000..c1f9be735
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-368213.js
@@ -0,0 +1,17 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 368213;
+var summary = 'Do not crash with group assignment and sharp variable defn';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+ 
+(function() { [] = [] });
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-368224.js b/js/src/tests/js1_7/extensions/regress-368224.js
new file mode 100644
index 000000000..234f26856
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-368224.js
@@ -0,0 +1,28 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 368224;
+var summary = 'Do not assert: pnprop->pn_type == TOK_COLON';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  ({ x: a } = {});
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-372364.js b/js/src/tests/js1_7/extensions/regress-372364.js
new file mode 100644
index 000000000..ed641045f
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-372364.js
@@ -0,0 +1,35 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 372364;
+var summary = 'Do not recurse to death on (function() { yield ([15].some([].watch)); })().next()';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  print('FIXME: Fix this test to check the proper error when bug 366669 is fixed');
+  try
+  {
+    (function() { yield ([15].some([].watch)); })().next();
+  }
+  catch(ex)
+  {
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-379566.js b/js/src/tests/js1_7/extensions/regress-379566.js
new file mode 100644
index 000000000..73f80ce04
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-379566.js
@@ -0,0 +1,45 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 379566;
+var summary = 'Keywords after get|set';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  expect = '({ ' +
+    'get in () { return this.for; }, ' + 
+    'set in (value) { this.for = value; } ' + 
+    '})';
+  try
+  {
+    var obj = eval('({ ' +
+                   'get in() { return this.for; }, ' + 
+                   'set in(value) { this.for = value; } ' + 
+                   '})');
+    actual = obj.toSource();
+
+  }
+  catch(ex)
+  {
+    actual = ex + '';
+  }
+
+  compareSource(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-380933.js b/js/src/tests/js1_7/extensions/regress-380933.js
new file mode 100644
index 000000000..09f64209d
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-380933.js
@@ -0,0 +1,27 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var BUGNUMBER = 380933;
+var summary = 'Do not assert with uneval object with setter with modified proto';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+var f = (function(){});
+var y =
+  Object.defineProperty({}, "p",
+  {
+    get: f,
+    enumerable: true,
+    configurable: true
+  });
+f.__proto__ = [];
+uneval(y);
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");
+
diff --git a/js/src/tests/js1_7/extensions/regress-381301.js b/js/src/tests/js1_7/extensions/regress-381301.js
new file mode 100644
index 000000000..e69009b80
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-381301.js
@@ -0,0 +1,32 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 381301;
+var summary = 'uneval of object with native-function getter';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  var o =
+    Object.defineProperty({}, "x", { get: decodeURI, enumerable: true, configurable: true });
+  expect = '( { get x ( ) { [ native code ] } } )';
+  actual =  uneval(o);
+
+  compareSource(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-381303.js b/js/src/tests/js1_7/extensions/regress-381303.js
new file mode 100644
index 000000000..40c9dbdef
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-381303.js
@@ -0,0 +1,35 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 381303;
+var summary = 'object toSource when a property has both a getter and a setter';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  var obj = {set inn(value) {this.for = value;}, get inn() {return this.for;}};
+  expect = '( { ' + 
+    'get inn() {return this.for;}' + 
+    ', ' + 
+    'set inn(value) {this.for = value;}' + 
+    '})';
+  actual = obj.toSource();
+
+  compareSource(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-387955-01.js b/js/src/tests/js1_7/extensions/regress-387955-01.js
new file mode 100644
index 000000000..e3af18401
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-387955-01.js
@@ -0,0 +1,40 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 387955;
+var summary = 'Do not Crash [@ TraceEdge]';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  var fal = false;
+
+  function gen() { 
+    let x;
+    function y(){} 
+    this.__defineGetter__('', function(){}); 
+    if (fal)
+      yield;
+  }
+
+  for (var i in gen()) { }
+
+  gc();
+ 
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-387955-02.js b/js/src/tests/js1_7/extensions/regress-387955-02.js
new file mode 100644
index 000000000..dc3b795b6
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-387955-02.js
@@ -0,0 +1,41 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 387955;
+var summary = 'Do not Crash [@ TraceEdge]';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  var f;
+
+  function gen(yield_at_least_once) {
+    let x = 11;
+    function y(){}
+    f = function(){ return x; };
+    if (yield_at_least_once)
+      yield;
+  }
+
+  for (var i in gen()) { }
+
+  if (f() !== 11)
+    throw "unexpected value of local x";
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-392308.js b/js/src/tests/js1_7/extensions/regress-392308.js
new file mode 100644
index 000000000..7d4c9e1d9
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-392308.js
@@ -0,0 +1,47 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 392308;
+var summary = 'StopIteration should be catchable';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  function testStop() {
+    function yielder() {
+      actual += 'before, ';
+      yield;
+      actual += 'after, ';
+    }
+
+    expect = 'before, after, iteration terminated normally';
+
+    try {
+      var gen = yielder();
+      result = gen.next();
+      gen.send(result);
+    } catch (x if x instanceof StopIteration) {
+      actual += 'iteration terminated normally';
+    } catch (x2) {
+      actual += 'unexpected throw: ' + x2;
+    }
+  }
+  testStop();
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-396326.js b/js/src/tests/js1_7/extensions/regress-396326.js
new file mode 100644
index 000000000..2a26e5350
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-396326.js
@@ -0,0 +1,37 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 396326;
+var summary = 'Do not assert trying to disassemble get(var|arg) prop';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  if (typeof dis == 'undefined')
+  {
+    print('disassembly not supported. test skipped.');
+    reportCompare(expect, actual, summary);
+  }
+  else
+  {
+    function f4() { let local; return local.prop }; 
+    dis(f4);
+    reportCompare(expect, actual, summary + 
+                  ': function f4() { let local; return local.prop };');
+  }
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-453955.js b/js/src/tests/js1_7/extensions/regress-453955.js
new file mode 100644
index 000000000..454f712f3
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-453955.js
@@ -0,0 +1,31 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 453955;
+var summary = 'Do not assert: sprop->setter != js_watch_set || pobj != obj';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  for (var z = 0; z < 2; ++z) 
+  { 
+    [].filter.watch("9", function(y) { yield y; });
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-458679.js b/js/src/tests/js1_7/extensions/regress-458679.js
new file mode 100644
index 000000000..d87d23512
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-458679.js
@@ -0,0 +1,52 @@
+// |reftest| skip-if(!xulRuntime.shell||xulRuntime.shell&&xulRuntime.XPCOMABI.match(/x86_64/)) slow
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 458679;
+var summary = 'Do not assert: nbytes != 0';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+function f()
+{
+  for (var i = 1; i < dps.length; ++i) {
+    var a = "";
+    var b = "";
+    var c = "";
+  }
+}
+
+function stringOfLength(n)
+{
+  if (n == 0) {
+    return "";
+  } else if (n == 1) {
+    return "\"";
+  } else {
+    var r = n % 2;
+    var d = (n - r) / 2;
+    var y = stringOfLength(d);
+    return y + y + stringOfLength(r);
+  }    
+}
+
+try
+{
+  this.__defineGetter__('x', this.toSource);
+  while (x.length < 12000000) { 
+    let q = x;
+    s = q + q; 
+  }
+  print(x.length);
+}
+catch(ex)
+{
+}
+ 
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-469234.js b/js/src/tests/js1_7/extensions/regress-469234.js
new file mode 100644
index 000000000..52ca30bf0
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-469234.js
@@ -0,0 +1,30 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 469234;
+var summary = 'TM: Do not assert: !JS_ON_TRACE(cx)';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+
+  for(var j=0;j<3;++j)({__proto__:[]}).__defineSetter__('x',function(){});
+
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-469405-01.js b/js/src/tests/js1_7/extensions/regress-469405-01.js
new file mode 100644
index 000000000..82172c3d3
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-469405-01.js
@@ -0,0 +1,27 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 469405;
+var summary = 'Do not assert: !regs.sp[-2].isPrimitive()';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+try
+{ 
+  (function() {
+    var a, b;
+    for each (a in [{}, {__iterator__: function(){}}]) for (b in a) { }
+  })();
+}
+catch(ex)
+{
+  print('caught ' + ex);
+}
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-469405-02.js b/js/src/tests/js1_7/extensions/regress-469405-02.js
new file mode 100644
index 000000000..196557e69
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-469405-02.js
@@ -0,0 +1,25 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 469405;
+var summary = 'Do not assert: !regs.sp[-2].isPrimitive()';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+try
+{ 
+  eval("__proto__.__iterator__ = [].toString");
+  for (var z = 0; z < 3; ++z) { if (z % 3 == 2) { for(let y in []); } }
+}
+catch(ex)
+{
+  print('caught ' + ex);
+}
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-470300-01.js b/js/src/tests/js1_7/extensions/regress-470300-01.js
new file mode 100644
index 000000000..6558330d1
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-470300-01.js
@@ -0,0 +1,30 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 470300;
+var summary = 'TM: Do not assert: StackBase(fp) + blockDepth == regs.sp';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+
+  for (let a = 0; a < 3; ++a) { let b = '' + []; }
+
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-470300-02.js b/js/src/tests/js1_7/extensions/regress-470300-02.js
new file mode 100644
index 000000000..0ecd368ff
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-470300-02.js
@@ -0,0 +1,30 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 470300;
+var summary = 'TM: Do not assert: !fp->blockChain || OBJ_GET_PARENT(cx, obj) == fp->blockChain';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+
+  for (let a = 0; a < 7; ++a) { let e = 8; if (a > 3) { let x; } }
+
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-473282.js b/js/src/tests/js1_7/extensions/regress-473282.js
new file mode 100644
index 000000000..c50ac9234
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-473282.js
@@ -0,0 +1,20 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 473282;
+var summary = 'Do not assert: thing';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+ 
+this.watch("b", "".substring);
+this.__defineGetter__("a", gc);
+for each (b in [this, null, null]);
+a;
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-474771-01.js b/js/src/tests/js1_7/extensions/regress-474771-01.js
new file mode 100644
index 000000000..ca754ba2c
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-474771-01.js
@@ -0,0 +1,32 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 474771;
+var summary = 'TM: do not assert: jumpTable == interruptJumpTable';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+
+  var o = {};
+  o.__defineSetter__('x', function(){});
+  for (let j = 0; j < 4; ++j) o.x = 3;
+
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-474771-02.js b/js/src/tests/js1_7/extensions/regress-474771-02.js
new file mode 100644
index 000000000..127351858
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-474771-02.js
@@ -0,0 +1,20 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 474771;
+var summary = 'TM: do not assert: jumpTable == interruptJumpTable';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+
+this.__defineSetter__('x', function(){});
+for (var j = 0; j < 5; ++j) { x = 3; }
+
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-476257.js b/js/src/tests/js1_7/extensions/regress-476257.js
new file mode 100644
index 000000000..6f2852590
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-476257.js
@@ -0,0 +1,57 @@
+// |reftest| skip-if(Android)
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 476257;
+var summary = 'Do not assert: !JS_ON_TRACE(cx)';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+ 
+
+function f1() {
+  try
+  {
+    Object.defineProperty(__proto__, "functional",
+    {
+      enumerable: true, configurable: true,
+      get: function ()
+      {
+        if (typeof gczeal == 'function') { gczeal(0); }
+      }
+    });
+    for each (let [[]] in [true, new Boolean(true), new Boolean(true)]) {}
+  }
+  catch(ex)
+  {
+  }
+}
+
+function f2() {
+  try
+  {
+    Object.defineProperty(__proto__, "functional",
+    {
+      enumerable: true, configurable: true,
+      get: function () 
+      { 
+        if (typeof dis == 'function') { dis(); } 
+      }
+    });
+    for each (let [[]] in [true, new Boolean(true), new Boolean(true)]) {}
+  }
+  catch(ex)
+  {
+  }
+}
+
+f1();
+f2();
+
+
+reportCompare(expect, actual, summary);
diff --git a/js/src/tests/js1_7/extensions/regress-477048.js b/js/src/tests/js1_7/extensions/regress-477048.js
new file mode 100644
index 000000000..638f9f035
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-477048.js
@@ -0,0 +1,34 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 477048;
+var summary = 'Do not assert: cg->stackDepth == loopDepth';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  enterFunc ('test');
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  try
+  {
+    for each (this.__proto__ in x) {}
+  }
+  catch(ex)
+  {
+  }
+
+  reportCompare(expect, actual, summary);
+
+  exitFunc ('test');
+}
diff --git a/js/src/tests/js1_7/extensions/regress-589112.js b/js/src/tests/js1_7/extensions/regress-589112.js
new file mode 100644
index 000000000..db6d1c7c0
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-589112.js
@@ -0,0 +1,6 @@
+
+f = eval("(function(){return x=Iterator(/x/)})")
+for (a in f()) {}
+for (d in x) {}
+
+reportCompare(0, 0, "");
diff --git a/js/src/tests/js1_7/extensions/regress-590813.js b/js/src/tests/js1_7/extensions/regress-590813.js
new file mode 100644
index 000000000..ec701ced5
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-590813.js
@@ -0,0 +1,23 @@
+
+var actual = '';
+var expected = 'A0B1B2C0C1C2';
+
+var x = Iterator([1,2,3], true);
+
+for (var a in x) {
+  actual += 'A' + a;
+  for (var b in x) {
+    actual += 'B' + b;
+  }
+}
+
+var y = Iterator([1,2,3], true);
+
+for (var c in y) {
+  actual += 'C' + c;
+}
+for (var d in y) {
+  actual += 'D' + d;
+}
+
+reportCompare(expected, actual, "Handle nested Iterator iteration right");
diff --git a/js/src/tests/js1_7/extensions/regress-591450.js b/js/src/tests/js1_7/extensions/regress-591450.js
new file mode 100644
index 000000000..f1ebcf675
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/regress-591450.js
@@ -0,0 +1,12 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+/*
+ * This was causing the parser to assert at one point. Now it's not. Yay!
+ */
+function f(a,[x,y],b,[w,z],c) { function b() { } }
+
+reportCompare(0, 0, "don't crash");
diff --git a/js/src/tests/js1_7/extensions/shell.js b/js/src/tests/js1_7/extensions/shell.js
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/js/src/tests/js1_7/extensions/shell.js