Fix layout test for redeclaration of arguments.

third_party/WebKit/LayoutTests/fast/js/mozilla/strict/script-tests/13.1.js

Index: third_party/WebKit/LayoutTests/fast/js/mozilla/strict/script-tests/13.1.js
diff --git a/third_party/WebKit/LayoutTests/fast/js/mozilla/strict/script-tests/13.1.js b/third_party/WebKit/LayoutTests/fast/js/mozilla/strict/script-tests/13.1.js
index 77d5c4468b881088e617af871003ef9276c843e3..2076138410e6b35277a89407ef0b663aa3fb207d 100644
--- a/third_party/WebKit/LayoutTests/fast/js/mozilla/strict/script-tests/13.1.js
+++ b/third_party/WebKit/LayoutTests/fast/js/mozilla/strict/script-tests/13.1.js
@@ -229,15 +229,12 @@ assertEq(testLenientAndStrict('function f(arguments){}',
                               parsesSuccessfully,
                               parseRaisesException(SyntaxError)),
          true);
-// BUG(v8:4577): In sloppy mode, we currently throw when destructuring
-// parameters include 'arguments', even if a direct argument named
-// 'arguments' is accepted, once the --harmony-sloppy flag is shipped.
 assertEq(testLenientAndStrict('function f([arguments]){}',
-                              parseRaisesException(SyntaxError),
+                              parsesSuccessfully,
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('function f({x:arguments}){}',
-                              parseRaisesException(SyntaxError),
+                              parsesSuccessfully,
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('function arguments(){}',
@@ -267,11 +264,11 @@ assertEq(testLenientAndStrict('(function f(arguments){})',
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('(function f([arguments]){})',
-                              parseRaisesException(SyntaxError),
+                              parsesSuccessfully,
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('(function f({x:arguments}){})',
-                              parseRaisesException(SyntaxError),
+                              parsesSuccessfully,
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('(function arguments(){})',
@@ -321,11 +318,11 @@ assertEq(testLenientAndStrict('({set x(arguments){}})',
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('({set x([arguments]){}})',
-                              parseRaisesException(SyntaxError),
+                              parsesSuccessfully,
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('({set x({x:arguments}){}})',
-                              parseRaisesException(SyntaxError),
+                              parsesSuccessfully,
                               parseRaisesException(SyntaxError)),
          true);
 assertEq(testLenientAndStrict('({set x(arguments){"use strict";}})',