Fix expression positions for for-loops.

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 90 matching lines @@
   // For-in: get enumerable, assign, body, assign, body, ...
   "f12","f7","F4","f7","F4","f7","F4","f7",
   // For-in-let: get enumerable, next, body, next,  ...
   "g16","g11","G4","g11","G4","g11","G4","g11",
   // For-of-var: [Symbol.iterator](), next(), body, next(), body, ...
   "h16","h14","h15","H4","h15","H4","h15","H4","h15",
   // For-of: [Symbol.iterator](), next(), body, next(), body, ...
   "i12","i10","i11","I4","i11","I4","i11","I4","i11",
   // For-of-let: [Symbol.iterator](), next(), body, next(), ...
   "j16","j14","j15","J4","j15","J4","j15","J4","j15",
-  // For-var: var decl, init, condition, body, next, condition, body, ...
-  "k7","k15","k20","K4","k26","k20","K4","k26","k20","K4","k26","k20",
+  // For-var: init, condition, body, next, condition, body, ...
+  "k15","k20","K4","k26","k20","K4","k26","k20","K4","k26","k20",
   // For: init, condition, body, next, condition, body, ...
   "l7","l16","L4","l22","l16","L4","l22","l16","L4","l22","l16",
   // For-let: init, condition, body, next, condition, body, ...
   "m15","m20","M4","m26","m20","M4","m26","m20","M4","m26","m20",
   // Exit.
   "y0","z0",
 ]
 print("expected:\n"+ JSON.stringify(expected));
 
 assertArrayEquals(expected, log);
 assertEquals(54, s);
 assertNull(exception);