VM: Fix bug with break out of a try-finally inside a loop.

tests/language/try_finally_regress_25654_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.
+
+// Test break out of try-finally.
+
+import "package:expect/expect.dart";
+
+var count = 0;
+
+test() {
+  L:
+  while (true) {
+    try {
+      break L;
+    } finally {
+      count++;
+    }
+  }
+  throw "ex";
+}
+
+main() {
+  bool caught = false;
+  try {
+    test();
+  } catch (e) {
+    caught = true;
+    Expect.equals(e, "ex");
+  }
+  Expect.isTrue(caught);
+  Expect.equals(1, count);
+}
+
+
+