Better error for swapping period and ::

[ayende]

I wrote the following code, and got this error.

sslb.set_verify_callback(openssl::ssl::SslVerifyMode.PEER, |_, _| true);// accept all certificates
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ did you mean `openssl::ssl::SslVerifyMode { /* fields */ }`?

A better error would be to suggest openssl::ssl::SslVerifyMode::PEER, because if the type has a member of this name, it is very likely a typo

[estebank]

CC #47666. Not the same parser code, but similar type of enhancement to user experience.