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

tests/kernel/unsorted/rethrow_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';
-
-testNormalRethrow() {
-  var x = 0;
-  try {
-    try {
-      throw x++;
-    } catch (e) {
-      Expect.isTrue(e == 0);
-      x++;
-      rethrow;
-    }
-  } catch (e) {
-    Expect.isTrue(e == 0);
-    x++;
-  }
-  Expect.isTrue(x == 3);
-}
-
-testNormalRethrow2() {
-  var x = 0;
-  try {
-    try {
-      throw x++;
-    } on int catch (e) {
-      Expect.isTrue(e == 0);
-      x++;
-      rethrow;
-    }
-  } catch (e) {
-    Expect.isTrue(e == 0);
-    x++;
-  }
-  Expect.isTrue(x == 3);
-}
-
-testRethrowWithinTryRethrow() {
-  var x = 0;
-  try {
-    try {
-      throw x++;
-    } on int catch (e) {
-      Expect.isTrue(e == 0);
-      x++;
-      try {
-        x++;
-        rethrow;
-      } finally {
-        x++;
-      }
-    }
-  } catch (e) {
-    Expect.isTrue(e == 0);
-    x++;
-  }
-  Expect.isTrue(x == 5);
-}
-
-main() {
-  testNormalRethrow();
-  testNormalRethrow2();
-  testRethrowWithinTryRethrow();
-}