Enumerator::Chain.new(1..3, [4, 5]) causes TypeError

[deepj]

This is a direct example from Ruby 2.6 documentation to Enumerator::Chain (https://ruby-doc.org/core-2.6/Enumerator/Chain.html). There is no issue under MRI.

To reproduce:

ruby -e "Enumerator::Chain.new(1..3, [4, 5])"

Error:

-e:1:in `coerce_to_failed': Coercion error: [4, 5].to_sym => Symbol failed (TypeError)
	from -e:1:in `execute_coerce_to'
	from -e:1:in `coerce_to'
	from -e:1:in `initialize'
	from -e:1:in `new'
	from -e:1:in `<main>'

[bjfish]

Thanks, this is fixed at: 3b756ce.