Change dart2js_foreign suite to use metadata.

dart/tests/compiler/dart2js_foreign/native_no_such_method_exception3_test.dart

Index: dart/tests/compiler/dart2js_foreign/native_no_such_method_exception3_test.dart
diff --git a/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception3_test.dart b/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception3_test.dart
index a3cc9ce5ea349351f5e39729b119cab8b19f66ab..df215d2d39879f68154de6be27d9993ee094e764 100644
--- a/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception3_test.dart
+++ b/dart/tests/compiler/dart2js_foreign/native_no_such_method_exception3_test.dart
@@ -2,11 +2,13 @@
 // 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;
 }
 
-class B native "*B" {
+@native("*B")
+class B  {
   foo() => 42;
 }
 
@@ -15,12 +17,13 @@ class C {
   noSuchMethod(x, y) => "$x:$y";
 }
 
-makeA() native;
+@native makeA();
 
-setup() native """
+@native("""
   function A() {}
   makeA = function() { return new A; }
-""";
+""")
+setup();
 
 main() {
   setup();