[Chapel Merge] Fix tests seemingly missed in #19940

Branch: refs/heads/main
Revision: b91d72b
Author: bradcray
Link: Fix tests seemingly missed in #19940 by bradcray · Pull Request #20007 · chapel-lang/chapel · GitHub
Log Message:

Merge pull request #20007 from bradcray/avoid-readwrite

Fix tests seemingly missed in #19940

[trivial, not reviewed]

While running a sanity check paratest tonight, I found that these
three tests failed due to deprecation warnings about
channel.readwrite(). I suspect that these were just overlooked.

Modified Files:
M test/visibility/only/operatorsAlone.chpl

M test/visibility/only/operatorsFirst.chpl
M test/visibility/only/operatorsLast.chpl

Compare: https://github.com/chapel-lang/chapel/compare/e20a37fe4729...b91d72bfbb17