Gem::Dependency#matching_specs

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/dependency.rb, line 273
def matching_specs(platform_only = false)
  matches = Gem::Specification.find_all_by_name(name, requirement)

  if platform_only
    matches.reject! do |spec|
      spec.nil? || !Gem::Platform.match_spec?(spec)
    end
  end

  matches.reject(&:ignored?)
end