Pass the double name through to the proxy for verified doubles.

This ensures that failure messages mention name the
specific double.
Merge pull request #659 from rspec/better-verified-double-error-messages

Pass the double name through to the proxy for verified doubles.
Changelog for #659.

[ci skip]
Make proxies notify any instance recorders when they receive messages.
Ensure we take the class hierarchy into account when finding any_instance recorders.
Ensure our any_instance notification works when the mock proxy was created previously.