Move tests using frog 'native' extension from tests/language to frog/tests

tests/language/src/NativeClassInheritance2FrogTest.dart

Index: tests/language/src/NativeClassInheritance2FrogTest.dart
diff --git a/tests/language/src/NativeClassInheritance2FrogTest.dart b/tests/language/src/NativeClassInheritance2FrogTest.dart
deleted file mode 100644
index 9dec57b5c81cf057dc130fd3f082e75cb1314b24..0000000000000000000000000000000000000000
--- a/tests/language/src/NativeClassInheritance2FrogTest.dart
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2011, 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 to see if resolving a hidden native class's method interferes with
-// subsequent resolving the subclass's method.  This might happen if the
-// superclass caches the method in the prototype, so shadowing the dispatcher
-// stored on Object.prototype.
-
-class A native "*A" {
-  foo([a=100]) native;
-}
-
-class B extends A native "*B" {
-}
-
-class C extends B native "*C" {
-  foo([z=300]) native;
-}
-
-class D extends C native "*D" {
-}
-
-makeA() native;
-makeB() native;
-makeC() native;
-makeD() native;
-
-void setup() native """
-// This code is all inside 'setup' and so not accesible from the global scope.
-function inherits(child, parent) {
-  if (child.prototype.__proto__) {
-    child.prototype.__proto__ = parent.prototype;
-  } else {
-    function tmp() {};
-    tmp.prototype = parent.prototype;
-    child.prototype = new tmp();
-    child.prototype.constructor = child;
-  }
-}
-
-function A(){}
-function B(){}
-inherits(B, A);
-function C(){}
-inherits(C, B);
-function D(){}
-inherits(D, C);
-
-A.prototype.foo = function(a){return 'A.foo(' + a + ')';}
-C.prototype.foo = function(z){return 'C.foo(' + z + ')';}
-
-makeA = function(){return new A};
-makeB = function(){return new B};
-makeC = function(){return new C};
-makeD = function(){return new D};
-""";
-
-
-main() {
-  setup();
-
-  var a = makeA();
-  var b = makeB();
-  var c = makeC();
-  var d = makeD();
-
-  Expect.equals('A.foo(100)', b.foo());
-  Expect.equals('C.foo(300)', d.foo());
-  // If the above line fails with C.foo(100) then the dispatch to fill in the
-  // default got the wrong one, followed by a second dispatch that resolved to
-  // the correct native method.
-
-  Expect.equals('A.foo(1)', a.foo(1));
-  Expect.equals('A.foo(2)', b.foo(2));
-  Expect.equals('C.foo(3)', c.foo(3));
-  Expect.equals('C.foo(4)', d.foo(4));
-}