Force local context allocation in finally clauses (fixes #26948).

tests/language/regress_26948_test.dart

Index: tests/language/regress_26948_test.dart
diff --git a/tests/language/regress_26948_test.dart b/tests/language/regress_26948_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..7e323f77b260932d1fc777a75936dd6d0ac26202
--- /dev/null
+++ b/tests/language/regress_26948_test.dart
@@ -0,0 +1,26 @@
+// 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.
+// VMOptions=--optimization-counter-threshold=10 --no-background-compilation
+
+import 'dart:async';
+import "package:expect/expect.dart";
+
+void check(Function f) {
+  Expect.isTrue(f());
+}
+
+Future doSync() async {
+   try {
+     await 123;
+  } finally {
+    var next = 5.0;
+    check(() => next == 5.0);
+  }
+}
+
+main() async {
+  for (int i = 0; i < 20; i++) {
+    await doSync();
+  }
+}