use non deprecated way to get record name #10

multiple locations [1] get record name using ._name which is marked as deprecated [2]

we could have an utility function that uses the modern way and falls back to _name if not found to be backward compatible but allow future versions of immutable to drop ._name.

[1]

[2] https://github.com/immutable-js/immutable-js/blob/9acd11a87e1c628f08639f9ae0539073f4ee46d8/src/Record.js#L63