Change dart2js_foreign suite to use metadata.

dart/tests/compiler/dart2js_foreign/native_no_such_method_exception4_test.dart

Index: dart/tests/compiler/dart2js_foreign/native_no_such_method_exception4_test.dart
diff --git a/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception4_test.dart b/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception4_test.dart
index fa1f87844cf0c1064eae609fc901510da640c721..80559389da3fdd21e35172bdbb8a63f6036783ad 100644
--- a/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception4_test.dart
+++ b/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception4_test.dart
@@ -2,21 +2,24 @@
 // 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 native "*A" {
+@native("*A")
+class A  {
   bar() => 42;
   noSuchMethod(x,y) => "native($x:$y)";
 }
 
-class B native "*B" {
+@native("*B")
+class B  {
   baz() => 42;
 }
 
-makeA() native;
+@native makeA();
 
-setup() native """
+@native("""
   function A() {}
   makeA = function() { return new A; }
-""";
+""")
+setup();
 
 main() {
   setup();