Rewrite scopes in computed properties in destructured parameters

test/mjsunit/regress/regress-crbug-620119.js

Index: test/mjsunit/regress/regress-crbug-620119.js
diff --git a/test/mjsunit/regress/regress-crbug-620119.js b/test/mjsunit/regress/regress-crbug-620119.js
new file mode 100644
index 0000000000000000000000000000000000000000..cbe5a78713d81bfe2aa08f34b192cabaf14c83a2
--- /dev/null
+++ b/test/mjsunit/regress/regress-crbug-620119.js
@@ -0,0 +1,8 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --no-lazy
+
+assertEquals(0, ((x, {[(x = function() { y = 0 }, "foo")]: y = eval(1)}) => { x(); return y })(42, {}));
+assertEquals(0, (function (x, {[(x = function() { y = 0 }, "foo")]: y = eval(1)}) { x(); return y })(42, {}));