debugger and debugger_r: tests are subminimal because instantiating classes is not trivial.
dynoption: skipped because I expect it will be replaced and deleted when I review PR to do so.
editor: I discovered, or rediscovered, a new shutdown issue, with EditorWindow.  It appeared in the new test_flist also.  This time, I discovered how to solve it with tcl after info, thanks to Cheryl using it for test_codecontext.
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I am going to break this into 3 PRs.  The first third is done.  Having written this much, I think the new code is very unlikely to break on other OSes, so I don't think special testing is necessary before merging.

Tal, if you have a cpython clone on your OSX machine, it would be nice to have "python -m test.test_idle" (which runs gui tests) run in an updated repository at least once a week if there is anything new.