[destructuring] Grand for statement parsing unification.

test/mjsunit/es6/debug-stepnext-for.js

 // Copyright 2014 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: --expose-debug-as debug --harmony
 
 Debug = debug.Debug;
 var break_count = 0
 var exception = null;
 var log = []
@@ skipping 63 matching lines @@
     break_count++;
   } catch (e) {
     exception = e;
   }
 }
 
 Debug.setListener(listener);
 f();
 Debug.setListener(null);         // Break z
 
-print(JSON.stringify(log));
+print("log:\n"+ JSON.stringify(log));
 // The let declaration differs from var in that the loop variable
 // is declared in every iteration.
 var expected = [
   // Entry
   "a2","b2",
-  // Empty for-in-var: var decl, get enumerable
-  "c7","c16",
+  // Empty for-in-var: get enumerable
+  "c16",
   // Empty for-in: get enumerable
   "d12",
-  // For-in-var: var decl, get enumerable, assign, body, assign, body, ...
-  "e7","e16","e11","E4","e11","E4","e11","E4","e11",
+  // For-in-var: get enumerable, assign, body, assign, body, ...
+  "e16","e11","E4","e11","E4","e11","E4","e11",
   // For-in: get enumerable, assign, body, assign, body, ...
   "f12","f7","F4","f7","F4","f7","F4","f7",
-  // For-in-let: get enumerable, next, new let, body, next, new let, ...
-  "g16","g11","g7","G4","g11","g7","G4","g11","g7","G4","g11",
-  // For-of-var: var decl, next(), body, next(), body, ...
-  "h7","h16","H4","h16","H4","h16","H4","h16",
+  // For-in-let: get enumerable, next, body, next,  ...
+  "g16","g11","G4","g11","G4","g11","G4","g11",
+  // For-of-var: next(), body, next(), body, ...
+  "h16","H4","h16","H4","h16","H4","h16",
   // For-of: next(), body, next(), body, ...
   "i12","I4","i12","I4","i12","I4","i12",
-  // For-of-let: next(), new let, body, next(), new let, ...
-  "j16","j7","J4","j16","j7","J4","j16","j7","J4","j16",
+  // For-of-let: next(), body, next(), ...
+  "j16","J4","j16","J4","j16","J4","j16",
   // For-var: var decl, condition, body, next, condition, body, ...
   "k7","k20","K4","k23","k20","K4","k23","k20","K4","k23","k20",
   // For: init, condition, body, next, condition, body, ...
   "l11","l16","L4","l19","l16","L4","l19","l16","L4","l19","l16",
   // Exit.
   "y0","z0",
 ]
+print("expected:\n"+ JSON.stringify(log));
 
 assertArrayEquals(expected, log);
 assertEquals(48, s);
 assertNull(exception);