Revert "stream: remove ambiguous code"

This reverts commit ce62e963.

PR-URL: https://github.com/nodejs/node/pull/29717


Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Beth Griggs <Bethany.Griggs@uk.ibm.com>