Revert "Support runtime check of function types."

tests/language/function_subtype_top_level1_test.dart

Index: tests/language/function_subtype_top_level1_test.dart
diff --git a/tests/language/function_subtype_top_level1_test.dart b/tests/language/function_subtype_top_level1_test.dart
deleted file mode 100644
index b82bea1fb334e53ce8436bd32ba5c35fac17f040..0000000000000000000000000000000000000000
--- a/tests/language/function_subtype_top_level1_test.dart
+++ /dev/null
@@ -1,42 +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 top level functions.
-
-import 'package:expect/expect.dart';
-
-typedef int Foo<T>(T a, [String b]);
-typedef int Bar<T>(T a, [String b]);
-typedef int Baz<T>(T a, {String b});
-typedef int Boz<T>(T a);
-
-int foo(bool a, [String b]) => null;
-int baz(bool a, {String b}) => null;
-int boz(bool a, {int b}) => null;
-
-class C<T> {
-  void test(String nameOfT, bool expectedResult) {
-    Expect.equals(expectedResult, foo is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.equals(expectedResult, foo is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(foo is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, foo is Boz<T>, 'foo is Boz<$nameOfT>');
-
-    Expect.isFalse(baz is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.isFalse(baz is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.equals(expectedResult, baz is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, baz is Boz<T>, 'foo is Boz<$nameOfT>');
-
-    Expect.isFalse(boz is Foo<T>, 'foo is Foo<$nameOfT>');
-    Expect.isFalse(boz is Bar<T>, 'foo is Bar<$nameOfT>');
-    Expect.isFalse(boz is Baz<T>, 'foo is Baz<$nameOfT>');
-    Expect.equals(expectedResult, boz is Boz<T>, 'foo is Boz<$nameOfT>');
-  }
-}
-
-main() {
-  new C<bool>().test('bool', true);
-  new C<int>().test('int', false);
-  new C().test('dynamic', true);
-}