class Solargraph::Source::Chain::Head

@note Chain::Head is only intended to handle ‘self` and `super`.
either a class (`String`) or a function (`Kernel#String`).
Chain::Head is a link for ambiguous words, e.g.; `String` can refer to

def resolve api_map, name_pin, locals 

def resolve api_map, name_pin, locals
  return [Pin::ProxyType.anonymous(name_pin.binder)] if word == 'self'
  # return super_pins(api_map, name_pin) if word == 'super'

  []
end