Reinstate tests

[benjeffery]

Found these work with no modification, all other skips reviewed and look good.

Closes #3192

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.89%. Comparing base (7dff9d9) to head (904cb4f).

❗ There is a different number of reports uploaded between BASE (7dff9d9) and HEAD (904cb4f). Click for more details.

HEAD has 22 uploads less than BASE

Flag	BASE (7dff9d9)	HEAD (904cb4f)
python-tests-no-jit	12	6
c-tests	2	1
python-tests-numpy1	2	1
lwt-tests	2	1
python-c-tests	2	1
python-tests	12	0

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #3336       +/-   ##
===========================================
- Coverage   89.76%   77.89%   -11.87%     
===========================================
  Files          29       29               
  Lines       31289    31289               
  Branches     5737     5737               
===========================================
- Hits        28086    24373     -3713     
- Misses       1794     5390     +3596     
- Partials     1409     1526      +117     

Flag	Coverage Δ
c-tests	86.77% <ø> (ø)
lwt-tests	80.38% <ø> (ø)
python-c-tests	87.12% <ø> (ø)
python-tests	?
python-tests-no-jit	33.52% <ø> (ø)
python-tests-numpy1	50.26% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.
see 13 files with indirect coverage changes

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[benjeffery]

Humph hanging tests. We don't need this for 1.0. Punting.