Revert "Reland "Merge more Kernel infrastructure from kernel_sdk SDK fork.""

tests/kernel/unsorted/superclass_test.dart

-// 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.
-
-import 'expect.dart';
-
-class A {
-  A() {
-    print("A");
-  }
-
-  hello() {
-    print("A.hello()");
-    return 1;
-  }
-
-  hello1(a) {
-    print("A.hello1()");
-    print(a);
-    return 1;
-  }
-
-  foo(a, [b]) {
-    print("A.foo()");
-    print(a);
-    print(b);
-    return 1;
-  }
-
-  bar(a, {b}) {
-    print("A.bar()");
-    print(a);
-    print(b);
-    return 1;
-  }
-}
-
-class B extends A {
-  hello() {
-    print("B.hello()");
-    return 2;
-  }
-
-  bar(a, {b}) {
-    print("B.bar()");
-    print(a);
-    print(b);
-    return 2;
-  }
-}
-
-main() {
-  var o = new B();
-
-  // Base class methods.
-  Expect.isTrue(o.hello1(1) == 1);
-  Expect.isTrue(o.foo(1) == 1);
-  Expect.isTrue(o.foo(1, 2) == 1);
-
-  // Overwritten methods.
-  Expect.isTrue(o.hello() == 2);
-  Expect.isTrue(o.bar(1) == 2);
-  Expect.isTrue(o.bar(1, b: 2) == 2);
-}