diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_5/Exceptions/error-property-enumerability.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_5/Exceptions/error-property-enumerability.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,30 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var errors = ["Error", "EvalError", "RangeError", "ReferenceError",
+              "SyntaxError", "TypeError", "URIError"];
+
+for (var i = 0; i < errors.length; i++) {
+  var error = this[errors[i]];
+
+  var desc = Object.getOwnPropertyDescriptor(error.prototype, "name");
+  assertEq(!!desc, true, errors[i] + ".prototype.name should exist");
+  assertEq((desc || {}).enumerable, false, errors[i] + ".prototype.name should not be enumerable");
+
+  desc = Object.getOwnPropertyDescriptor(error.prototype, "message");
+  assertEq(!!desc, true, errors[i] + ".prototype.message should exist");
+  assertEq((desc || {}).enumerable, false, errors[i] + ".prototype.message should not be enumerable");
+
+  var instance = new error;
+  desc = Object.getOwnPropertyDescriptor(instance, "message");
+  assertEq(!!desc, false, "new " + errors[i] + ".message should not exist");
+
+  instance = new error("a message");
+  desc = Object.getOwnPropertyDescriptor(instance, "message");
+  assertEq(!!desc, true, "new " + errors[i] + "(...).message should exist");
+  assertEq((desc || {}).enumerable, false, "new " + errors[i] + "(...).message should not be enumerable");
+}
+
+reportCompare(true, true);