Make Error.prototype.name writable again, as required by the spec and the web.

Make Error.prototype.name writable again, as required by the spec and the web.

Address http://code.google.com/p/chromium/issues/detail?id=69187 by instead
ignoring getters on ReferenceError.prototype.name in Error.prototype.toString.

And while we're at it, do the same for SyntaxError and TypeError, and the
properties "message", "type", and "arguments" on all of them, which
potentially have similar issues.

R=danno@chromium.org
BUG=69187
TEST=

Committed: https://code.google.com/p/v8/source/detail?r=11529

[danno, 2012-05-08 14:10:00]

As discussed, do you also have to make sure that setters cannot be installed to
capture interesting information?

[rossberg, 2012-05-08 15:07:02]

On 2012/05/08 14:10:00, danno wrote:
> As discussed, do you also have to make sure that setters cannot be installed
to
> capture interesting information?

In fact, this is already the case, because we set error instance properties with
%IgnoreAttributesAndSetProperty. I added an additional test case to cover our
%MakeError built-ins.

[danno, 2012-05-08 16:17:02]

lgtm