R=cbruni@chromium.org
BUG=chromium:523308
LOG=N
Review URL: https://codereview.chromium.org/
1314543004
Cr-Commit-Position: refs/heads/master@{#30330}
bool ErrorToStringHelper::ShadowsInternalError(
Isolate* isolate, LookupIterator* property_lookup,
LookupIterator* internal_error_lookup) {
+ if (!property_lookup->IsFound()) return false;
Handle<JSObject> holder = property_lookup->GetHolder<JSObject>();
// It's fine if the property is defined on the error itself.
if (holder.is_identical_to(property_lookup->GetReceiver())) return true;
--- /dev/null
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var error;
+try { reference_error(); } catch (e) { error = e; }
+toString = error.toString;
+error.__proto__ = [];
+assertEquals("ReferenceError: reference_error is not defined",
+ toString.call(error));