Revert "Support runtime check of function types."

tests/language/function_subtype_bound_closure0_test.dart

Index: tests/language/function_subtype_bound_closure0_test.dart
diff --git a/tests/language/function_subtype_bound_closure0_test.dart b/tests/language/function_subtype_bound_closure0_test.dart
deleted file mode 100644
index 16d36ff263e97ef66f36b129579408edbb8d9414..0000000000000000000000000000000000000000
--- a/tests/language/function_subtype_bound_closure0_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-// Copyright (c) 2013, 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.
-// Dart test program for constructors and initializers.
-
-// Check function subtyping for bound closures.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo(bool a, [String b]);
-typedef int Bar(bool a, [String b]);
-typedef int Baz(bool a, {String b});
-typedef int Boz(bool a);
-
-class C {
-  int foo(bool a, [String b]) => null;
-  int baz(bool a, {String b}) => null;
-  int boz(bool a, {int b}) => null;
-}
-
-main() {
-  var c = new C();
-  var foo = c.foo;
-  Expect.isTrue(foo is Foo, 'foo is Foo');
-  Expect.isTrue(foo is Bar, 'foo is Bar');
-  Expect.isFalse(foo is Baz, 'foo is Baz');
-  Expect.isTrue(foo is Boz, 'foo is Boz');
-
-  var baz = c.baz;
-  Expect.isFalse(baz is Foo, 'baz is Foo');
-  Expect.isFalse(baz is Bar, 'baz is Bar');
-  Expect.isTrue(baz is Baz, 'baz is Baz');
-  Expect.isTrue(baz is Boz, 'baz is Boz');
-
-  var boz = c.boz;
-  Expect.isFalse(boz is Foo, 'boz is Foo');
-  Expect.isFalse(boz is Bar, 'boz is Bar');
-  Expect.isFalse(boz is Baz, 'boz is Baz');
-  Expect.isTrue(boz is Boz, 'boz is Boz');
-}