Add apply method signature to Function class.

runtime/lib/function_patch.dart

Index: runtime/lib/function_patch.dart
diff --git a/runtime/lib/function_patch.dart b/runtime/lib/function_patch.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c90dc6e1b1464827c2465000255d9cebfe974174
--- /dev/null
+++ b/runtime/lib/function_patch.dart
@@ -0,0 +1,11 @@
+// Copyright (c) 2012, 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.
+
+patch class Function {
+  /* patch */ static apply(Function function,
+                           List positionalArguments,
+                           [Map<String,Dynamic> namedArguments]) {
+    throw new NotImplementedException('Function.apply not implemented');
+  }
+}