Revert "Migrating a block of dart 2:"

tests/language_strong/closure_in_initializer_test.dart

 // Copyright (c) 2012, 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.
 
 // Test that a parameter used in two different closures defined in a
 // constructor initializer, is properly boxed.
 
 import "package:expect/expect.dart";
 
 class A {
   var f;
   var g;
   A(a)
       : f = (() => 42 + a),
         g = (() => ++a) {
     a = 4;
   }
 }
 
 class B extends A {
+  B() : super(42);
+}
+
+class C extends A {
   var h;
   C(a)
-      : h = (() => ++a),
-        super(42);
+      : super(42),
+        h = (() => ++a);
 }
 
 main() {
   var a = new A(1);
-  a = new B(0);
-  var ah = /*@compile-error=unspecified*/ a.h();
+  Expect.equals(46, a.f());
+  Expect.equals(5, a.g());
+  Expect.equals(47, a.f());
+
+  a = new B();
+  Expect.equals(46, a.f());
+  Expect.equals(5, a.g());
+  Expect.equals(47, a.f());
+
+  a = new C(0);
+  Expect.equals(46, a.f());
+  Expect.equals(5, a.g());
+  Expect.equals(47, a.f());
+  Expect.equals(1, a.h());
+  Expect.equals(2, a.h());
+  Expect.equals(47, a.f());
+  Expect.equals(6, a.g());
+  Expect.equals(48, a.f());
 }