Revert "dart2js cps: Compile some loops as 'for' loops."

pkg/compiler/lib/src/tree_ir/optimization/pull_into_initializers.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library tree_ir.optimization.pull_into_initializers;
 
 import 'optimization.dart' show Pass;
 import '../tree_ir_nodes.dart';
 
 /// Where a variable has been assigned.
@@ skipping 142 matching lines @@
     node.body = visitStatement(node.body);
     // The 'next' statement might not always get reached, so do not try to
     // pull expressions up from there.
     return node;
   }
 
   Statement visitWhileTrue(WhileTrue node) {
     return node;
   }
 
-  Statement visitFor(For node) {
+  Statement visitWhileCondition(WhileCondition node) {
     return node;
   }
 
   Statement visitTry(Try node) {
     return node;
   }
 
   Expression visitAssign(Assign node) {
     bool inImpureContext = impureCounter > 0;
     bool inBranch = branchCounter > 0;
@@ skipping 186 matching lines @@
 
   @override
   Expression visitForeignExpression(ForeignExpression node) {
     rewriteList(node.arguments);
     if (node.nativeBehavior.sideEffects.hasSideEffects()) {
       ++impureCounter;
     }
     return node;
   }
 }