[kernel] Support for top-level generic functions.

pkg/kernel/test/closures/closures.status

Index: pkg/kernel/test/closures/closures.status
diff --git a/pkg/kernel/test/closures/closures.status b/pkg/kernel/test/closures/closures.status
index 0d7343acb6a1f6291e964723897f1f450dd7cb7d..53fe05a7d826cdb25c811120f5bfcb8e86022068 100644
--- a/pkg/kernel/test/closures/closures.status
+++ b/pkg/kernel/test/closures/closures.status
@@ -1,6 +1,3 @@
 # 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.md file.
-
-field: RuntimeError
-type_variables: RuntimeError