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ptaylorKrisztián Szűcs
81c726f54d9
ptaylor authored and Krisztián Szűcs committed 9884b9ea203
ARROW-4976: [JS] Invalidate RecordBatchReader node/dom streams on reset()

Invalidates RecordBatchReader's internal Node or DOM streams so they can be piped to separate writable streams when reset.

Closes https://issues.apache.org/jira/browse/ARROW-4976.

This allows us to fix the EPIPE error in `arrow2csv` when piping to other processes which may close before consuming all the output:
![readtwotables](https://user-images.githubusercontent.com/178183/54714693-ca780780-4b0e-11e9-9083-2e5b04e7a226.gif)

Author: ptaylor <paul.e.taylor@me.com>

Closes #3991 from trxcllnt/js/reset-reader-streams and squashes the following commits:

6b8ccd58 <ptaylor> regenerate package-lock
7ecb00c3 <ptaylor> reset reader's internal node/DOM streams, fix EPIPE regression in arrow2csv
1fe1c17a <ptaylor> update to Ix with DOM streams, remove workaround for DOM stream writer tests