class RSpec::Mocks::MethodDouble

def show_frozen_warning
  RSpec.warn_with(
    "WARNING: rspec-mocks was unable to restore the original `#{@method_name}` " \
    "method on #{@object.inspect} because it has been frozen.  If you reuse this " \
    "object, `#{@method_name}` will continue to respond with its stub implementation.",
    :call_site                      => nil,
    :use_spec_location_as_call_site => true
  )
end