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

test/mjsunit/harmony/destructuring.js

Index: test/mjsunit/harmony/destructuring.js
diff --git a/test/mjsunit/harmony/destructuring.js b/test/mjsunit/harmony/destructuring.js
index 0ddda04285b29cb645e1ff38db56226e6255d470..3cfb6fc528ec6f981108d16b271251b6a3c6e3b7 100644
--- a/test/mjsunit/harmony/destructuring.js
+++ b/test/mjsunit/harmony/destructuring.js
@@ -11,4 +11,46 @@
 
   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);
+  }
 }());