url: track whatwg url issue #185 (non-special URL host)

[jasnell]

Refs: whatwg/url#185

This issue is proposing a number of changes to the way non-special protocol hosts are handled. The changes will alter the parsing protocol a bit. We'll need to make sure we update the parser in response.

[TimothyGu]

CC: @nodejs/url

[domenic]

Spec and tests have landed whatwg/url@3036255

[watilde]

PR was opened: #12523 🎉