Move frog/tests/{leg,leg_only,frog_native} to tests/compiler/.

frog/tests/frog_native/native_no_such_method_exception2_frog_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 native "*A" {
-}
-
-class B extends A native "*B" {
-  foo() native;
-}
-
-makeA() native;
-makeB() native;
-
-setup() native """
-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);
-  makeA = function() { return new A; }
-  makeB = function() { return new B; }
-  B.prototype.foo = function() { return 42; }
-""";
-
-main() {
-  setup();
-  var a = makeA();
-  var exception;
-  try {
-    a.foo();
-  } catch (NoSuchMethodException e) {
-    exception = e;
-  }
-  Expect.isNotNull(exception);
-
-  var b = makeB();
-  Expect.equals(42, b.foo());
-}