renamed _const_cast and __halt

[badasahog]

replaces #7001

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.69%. Comparing base (73d79ed) to head (73f08da).
Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7011   +/-   ##
=======================================
  Coverage   98.69%   98.69%           
=======================================
  Files          79       79           
  Lines       14677    14678    +1     
=======================================
+ Hits        14486    14487    +1     
  Misses        191      191           

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[github-actions]

Generated via commit 73f08da

Download link for the artifact containing the test results: ↓ atime-results.zip

Task	Duration
R setup and installing dependencies	4 minutes and 26 seconds
Installing different package versions	8 minutes and 22 seconds
Running and plotting the test cases	1 minutes and 58 seconds

[MichaelChirico]

To clarify, this is just #7001, but pushed to this repo instead of your fork, right? It would help for historical reference to add that as a quick note to the PR description -- imagine there's some issue that git blame traces back to this PR in, say, 5 years. A quick added note of context in the PR would help a lot for such cases.