Remove dart2js_foreign.

dart/tests/compiler/dart2js_foreign/native_wrapping_function2_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.
-
-import "package:expect/expect.dart";
-import 'native_metadata.dart';
-
-typedef void Callback0();
-typedef void Callback1(arg1);
-typedef void Callback2(arg1, arg2);
-
-@Native("*A")
-class A {
-  @Native("return closure();")
-  foo0(Callback0 closure);
-
-  @Native("return closure(arg1);")
-  foo1(Callback1 closure, arg1);
-
-  @Native("return closure(arg1, arg2);")
-  foo2(Callback2 closure, arg1, arg2);
-
-  @Native("return closure == (void 0) ? 42 : closure();")
-  foo3([Callback0 closure]);
-}
-
-@native makeA();
-
-@Native("""
-function A() {}
-makeA = function(){return new A;};
-""")
-void setup();
-
-main() {
-  setup();
-  var a = makeA();
-  Expect.equals(42, a.foo0(() => 42));
-  Expect.equals(43, a.foo1((arg1) => arg1, 43));
-  Expect.equals(44, a.foo2((arg1, arg2) => arg1 + arg2, 21, 23));
-  Expect.equals(42, a.foo3());
-  Expect.equals(43, a.foo3(() => 43));
-
-  A aa = a;
-  Expect.equals(42, aa.foo0(() => 42));
-  Expect.equals(43, aa.foo1((arg1) => arg1, 43));
-  Expect.equals(44, aa.foo2((arg1, arg2) => arg1 + arg2, 21, 23));
-  Expect.equals(42, aa.foo3());
-  Expect.equals(43, aa.foo3(() => 43));
-}