Fix for bug http://code.google.com/p/v8/issues/detail?id=1176.

test/mjsunit/strict-mode.js

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 273 matching lines @@
 CheckStrictMode("delete unqualified;", SyntaxError);
 CheckStrictMode("function strict() { delete unqualified; }", SyntaxError);
 CheckStrictMode("function function_name() { delete function_name; }",
                 SyntaxError);
 CheckStrictMode("function strict(parameter) { delete parameter; }",
                 SyntaxError);
 CheckStrictMode("function strict() { var variable; delete variable; }",
                 SyntaxError);
 CheckStrictMode("var variable; delete variable;", SyntaxError);
 
+(function TestStrictDelete() {
+  "use strict";
+  // "delete this" is allowed in strict mode and should work.
+  function strict_delete() { delete this; }
+  strict_delete();
+})();
+
 // Prefix unary operators other than delete, ++, -- are valid in strict mode
 (function StrictModeUnaryOperators() {
   "use strict";
   var x = [void eval, typeof eval, +eval, -eval, ~eval, !eval];
   var y = [void arguments, typeof arguments,
            +arguments, -arguments, ~arguments, !arguments];
 })();
 
 // 7.6.1.2 Future Reserved Words
 var future_reserved_words = [
@@ skipping 167 matching lines @@
   assertEquals(typeof strict.call("Hello"), "string");
   assertTrue(strict.call(object) === object);
 
   // Strict apply.
   assertTrue(strict.apply(null) === null);
   assertTrue(strict.apply(undefined) === undefined);
   assertEquals(typeof strict.apply(7), "number");
   assertEquals(typeof strict.apply("Hello"), "string");
   assertTrue(strict.apply(object) === object);
 })();