Make arguments read only in strict mode.

test/mjsunit/strict-mode-arguments.js

Index: test/mjsunit/strict-mode-arguments.js
diff --git a/test/mjsunit/strict-mode-arguments.js b/test/mjsunit/strict-mode-arguments.js
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index 0000000000000000000000000000000000000000..ac57e77a6742432bf63ab19726ac6b8173295193
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+++ b/test/mjsunit/strict-mode-arguments.js
@@ -0,0 +1,44 @@
+// 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
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"use strict";
+
+// arguments must be read only in strict mode.
+// NOTE: this test will be obsoleted in future changes when
+// assignment to arguments/eval will become syntax error in
+// strict mode eval code
+function TestArgumentsIsReadOnlyInStrict() {
+  // Lazy compiled. It verifies that the strict mode is correctly
+  // propagated from the initial parse to lazy compilation of the function.
+  function inner(a) {
+    eval('arguments = ["assigned"];');
+    return arguments[0];
+  }
+  return inner('argument');
+}
+
+assertEquals('argument', TestArgumentsIsReadOnlyInStrict());