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

tests/kernel/unsorted/super_initializer_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.md file.
-
-import 'expect.dart';
-
-String log;
-init() { log = ''; }
-logit(msg) { return log = '$log$msg'; }
-
-class Base {
-  var b;
-  Base.arg0() : b = logit('b') {
-    logit('B');
-  }
-  Base.arg1(a) : b = logit('b') {
-    logit('B');
-  }
-  Base.arg2(a, b) : b = logit('b') {
-    logit('B');
-  }
-}
-
-class Sub extends Base {
-  var x;
-  var s;
-  Sub.arg0() : x = logit('x'), super.arg0(), s = logit('s') {
-    logit('S');
-  }
-  Sub.arg1(a) : x = logit('x'), super.arg1(logit('1')), s = logit('s') {
-    logit('S');
-  }
-  Sub.arg2(a, b) : x = logit('x'), super.arg2(logit('1'), logit('2')), s = logit('s') {
-    logit('S');
-  }
-}
-
-test(fun(), String result) {
-  init();
-  fun();
-  Expect.isTrue(log == result);
-}
-
-main() {
-  test(() => new Sub.arg0(), 'xsbBS');
-  test(() => new Sub.arg1(1), 'x1sbBS');
-  test(() => new Sub.arg2(1, 2), 'x12sbBS');
-}