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

tests/kernel/unsorted/global_field_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 file.
+
+import 'expect.dart';
+
+var intField = 1;
+var doubleField = 3.1415;
+var stringField = "hello";
+var nullField = null;
+var nullField2;
+var composed = "hello" + " " + "world";
+
+class A {
+  static var intField = 1;
+  static var doubleField = 3.1415;
+  static var stringField = "hello";
+  static var nullField = null;
+  static var nullField2;
+  static var composed = "hello" + " " + "world";
+}
+
+main() {
+  Expect.isTrue(intField == 1);
+  Expect.isTrue(doubleField == 3.1415);
+  Expect.isTrue(stringField == "hello");
+  Expect.isTrue(nullField == null);
+  Expect.isTrue(nullField2 == null);
+  Expect.isTrue(composed == "hello world");
+
+  Expect.isTrue(A.intField == 1);
+  Expect.isTrue(A.doubleField == 3.1415);
+  Expect.isTrue(A.stringField == "hello");
+  Expect.isTrue(A.nullField == null);
+  Expect.isTrue(A.nullField2 == null);
+  Expect.isTrue(A.composed == "hello world");
+}