Regression tests for 25658 and 24817.

BUG=
R=alanknight@google.com

Review URL: https://codereview.chromium.org/2168493002 .

tests/html/html.status

@@ -357,9 +357,11 @@ event_customevent_test: SkipByDesign
 js_interop_1_test: SkipByDesign
 js_test: SkipByDesign
 js_array_test: SkipByDesign
+js_typed_interop_bind_this_test: SkipByDesign
 js_typed_interop_test: SkipByDesign
 js_typed_interop_default_arg_test: SkipByDesign
 js_typed_interop_type_test: SkipByDesign
+js_typed_interop_window_property_test: SkipByDesign
 js_function_getter_test: SkipByDesign
 js_function_getter_trust_types_test: SkipByDesign
 js_dart_to_string_test: SkipByDesign

tests/html/js_typed_interop_bind_this_test.dart

@@ -0,0 +1,53 @@
+// Copyright (c) 2016, 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.
+
+@JS()
+library js_typed_interop_bind_this_test;
+
+import 'dart:html';
+
+import 'package:js/js.dart';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'package:unittest/html_individual_config.dart';
+
+// This is a regression test for https://github.com/dart-lang/sdk/issues/25658
+
+_injectJs() {
+  document.body.append(new ScriptElement()
+    ..type = 'text/javascript'
+    ..innerHtml = r"""
+  "use strict";
+
+  function JsTest() {
+  }
+
+  JsTest.returnThis = function(name, value) {
+    return this;
+  };
+""");
+}
+
+@JS('JsTest.returnThis')
+external returnThis([name, value]);
+
+@JS('JsTest')
+external get jsTestObject;
+
+@JS('window')
+external get jsWindow;
+
+main() {
+  _injectJs();
+
+  useHtmlIndividualConfiguration();
+
+  group('bind this', () {
+    test('simple', () {
+      expect(identical(returnThis(), jsWindow), isFalse);
+      expect(identical(returnThis(), null), isFalse);
+      expect(identical(returnThis(), jsTestObject), isTrue);
+    });
+  });
+}

tests/html/js_typed_interop_window_property_test.dart

@@ -0,0 +1,40 @@
+// Copyright (c) 2016, 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.
+
+@JS()
+library js_typed_interop_window_property_test;
+
+import 'dart:html';
+
+import 'package:js/js.dart';
+import 'package:unittest/unittest.dart';
+import 'package:unittest/html_config.dart';
+import 'package:unittest/html_individual_config.dart';
+
+// This is a regression test for https://github.com/dart-lang/sdk/issues/24817
+
+_injectJs() {
+  document.body.append(new ScriptElement()
+    ..type = 'text/javascript'
+    ..innerHtml = r"""
+  "use strict";
+
+  window.foo = [function() { return 42; }];
+""");
+}
+
+@JS("window.foo")
+external List<Function> get foo;
+
+main() {
+  _injectJs();
+
+  useHtmlIndividualConfiguration();
+
+  group('bind this', () {
+    test('simple', () {
+      expect(foo[0](), equals(42));
+    });
+  });
+}