Fix wrong test in r13766 (Insert conversion to string in string.replace).

R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12315130

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13770 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/string-replace.js

@@ -225,7 +225,7 @@ var side_effect_flag = false;
 var replace_obj_side_effects = {
     toString: function() { side_effect_flag = true; return "x" }
 }
-assertEquals("abc", "abc".replace(/z/g, function() { return "x"; }));
+assertEquals("abc", "abc".replace(/z/g, replace_obj_side_effects));
 assertTrue(side_effect_flag);  // Side effect triggers even without a match.
 
 var regexp99pattern = "";