[destructuring] Adapting PatternRewriter to work in for-statements.

test/mjsunit/harmony/destructuring.js

 // Copyright 2015 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: --harmony-destructuring
 
 (function TestObjectLiteralPattern() {
   var { x : x, y : y } = { x : 1, y : 2 };
   assertEquals(1, x);
   assertEquals(2, y);
 
   var {z} = { z : 3 };
   assertEquals(3, z);
+
+
+  var sum = 0;
+  for(var {z} = { z : 3 }; z != 0; z--) {
+    sum += z;
+  }
+  assertEquals(6, sum);
 }());
+
+
+(function TestObjectLiteralPatternLexical() {
+  'use strict';
+  let { x : x, y : y } = { x : 1, y : 2 };
+  assertEquals(1, x);
+  assertEquals(2, y);
+
+  let {z} = { z : 3 };
+  assertEquals(3, z);
+
+
+  let sum = 0;
+  for(let {x, z} = { x : 0, z : 3 }; z != 0; z--) {
+    assertEquals(0, x);
+    sum += z;
+  }
+  assertEquals(6, sum);
+}());
+
+
+(function TestObjectLiteralPatternLexicalConst() {
+  'use strict';
+  const { x : x, y : y } = { x : 1, y : 2 };
+  assertEquals(1, x);
+  assertEquals(2, y);
+
+  const {z} = { z : 3 };
+  assertEquals(3, z);
+
+
+  for(const {x, z} = { x : 0, z : 3 }; z != 3 || x != 0;) {
+    assertTrue(false);
+  }
+}());