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

tests/kernel/unsorted/this_capture_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 Foo {
-  capture() {
-    return () {
-      return this;
-    };
-  }
-
-  captureFirst(a, b) {
-    return () {
-      print(a);
-      return this;
-    };
-  }
-
-  captureLast(a, b) {
-    return () {
-      print(b);
-      return this;
-    };
-  }
-}
-
-main() {
-  var foo = new Foo();
-  Expect.isTrue(identical(foo, (foo.capture())()));
-  Expect.isTrue(identical(foo, (foo.captureFirst(1, 2))()));
-  Expect.isTrue(identical(foo, (foo.captureLast(1, 2))()));
-}