Migrate block 43.

tests/language_strong/bad_constructor_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.
-
-class A {
-  // Constructor may not be static.
-  static A(); // //# 00: compile-time error
-
-  // Factory may not be static.
-  static factory A() { return null; } // //# 01: compile-time error
-
-  // Named constructor may not conflict with names of methods and fields.
-  var m;
-  A.m() { m = 0; } // //# 04: compile-time error
-
-  set q(var value) {
-    m = q;
-  } // No name conflict with q=.
-  // The runtime error occurs because main calls new A() instead of new A.q().
-  A.q(); //  //# 05: runtime error
-
-  A.foo() : m = 0; // //# 06: compile-time error
-  int foo(int a, int b) => a + b * m;
-}
-
-main() {
-  new A();
-}