Implement Function.prototype.toMethod.

src/harmony-classes.js

+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// This file relies on the fact that the following declarations have been made
+// in runtime.js:
+// var $Function = global.Function;
+// var $Array = global.Array;
+
+
+(function() {
+  function FunctionToMethod(homeObject) {
+    if (!IS_SPEC_FUNCTION(this)) {
+      throw MakeTypeError('toMethod_non_function',
+                          [%ToString(this), typeof this]);
+
+    }
+
+    if (!IS_SPEC_OBJECT(homeObject)) {
+      throw MakeTypeError('toMethod_non_object',
+                          [%ToString(homeObject)]);
+    }
+
+    return %ToMethod(this, homeObject);
+  }
+
+  %CheckIsBootstrapping();
+
+  InstallFunctions($Function.prototype, DONT_ENUM, $Array(
+      "toMethod", FunctionToMethod
+  ));
+}());