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

tests/kernel/unsorted/finally_contexts_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';
-
-// Test that the context depth is correct in the presence of control flow,
-// specifically branching and joining in the presence of break.  The
-// implementation uses the context depth after the else block of an if/then/else
-// as the context depth at the join point.  This test has an extra context
-// allocated in the (untaken) else branch so it tests that compiling the
-// (untaken) break properly tracks the context depth.
-
-test(list) {
-  // The loops force creation of a new context, otherwise context allocated
-  // variables might be hoisted to an outer context.
-  do {
-    if (list.length > 1) {
-      do {
-        var sum = 0;
-        addem() {
-          for (var x in list) sum += x;
-        }
-        addem();
-        Expect.isTrue(sum == 15);
-        L: if (sum != 15) {
-          // Unreachable.
-          do {
-            var product = 1;
-            multiplyem() {
-              for (var x in list) product *= n;
-            }
-            multiplyem();
-            Expect.isTrue(false);
-            break L;
-          } while (false);
-        }
-      } while (false);
-    }
-  } while (false);
-  Expect.isTrue(list.length == 5);
-}
-
-
-main() {
-  test([1, 2, 3, 4, 5]);
-}