Test for finding correct method for overriden native method of hidden native class.

tests/language/src/NativeClassInheritance3FrogTest.dart

+// 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 to noSuchMethod
+// interferes with subsequent resolving of the method.  This might happen if the
+// noSuchMethod is cached on Object.prototype.
+
+class A1 native "*A1" {
+  foo() native;
+}
+
+class B1 extends A1 native "*B1" {
+}
+
+makeA1() native;
+makeB1() native;
+
+
+class A2 native "*A2" {
+  foo([a=99]) native;
+}
+
+class B2 extends A2 native "*B2" {
+}
+
+makeA2() native;
+makeB2() native;
+
+makeObject() 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 A1(){}
+function B1(){}
+inherits(B1, A1);
+
+makeA1 = function(){return new A1};
+makeB1 = function(){return new B1};
+
+function A2(){}
+function B2(){}
+inherits(B2, A2);
+A2.prototype.foo = function(a){return 'A2.foo(' + a  + ')';}
+
+makeA2 = function(){return new A2};
+makeB2 = function(){return new B2};
+
+makeObject = function(){return new Object};
+""";
+
+
+main() {
+  setup();
+
+  var a1 = makeA1();
+  var b1 = makeB1();
+  var ob = makeObject();
+
+  // Does calling missing methods in one tree of inheritance forest affect other
+  // trees?
+  expectNoSuchMethod(() => b1.foo(), 'b1.foo()');
+  expectNoSuchMethod(() => a1.foo(), 'a1.foo()');
+  expectNoSuchMethod(() => ob.foo(), 'ob.foo()');
+
+  var a2 = makeA2();
+  var b2 = makeB2();
+
+  Expect.equals('A2.foo(99)', a2.foo());
+  Expect.equals('A2.foo(99)', b2.foo());
+  Expect.equals('A2.foo(1)', a2.foo(1));
+  Expect.equals('A2.foo(2)', b2.foo(2));
+
+
+  expectNoSuchMethod(() => b1.foo(3), 'b1.foo(3)');
+  expectNoSuchMethod(() => a1.foo(4), 'a1.foo(4)');
+}
+
+expectNoSuchMethod(action, note) {
+  bool caught = false;
+  try {
+    action();
+  } catch (var ex) {
+    caught = true;
+    Expect.isTrue(ex is NoSuchMethodException, note);
+  }
+  Expect.isTrue(caught, note);
+}