class Gem::Resolver::APISet

def find_all(req)
  res = []
  return res unless @remote
  if @to_fetch.include?(req.name)
    prefetch_now
  end
  versions(req.name).each do |ver|
    if req.dependency.match? req.name, ver[:number], @prerelease
      res << Gem::Resolver::APISpecification.new(self, ver)
    end
  end
  res
end