This PR replaces the JuvixAsm -> Nockma translation with a JuvixTree ->
Nockma translation.
We can now enable some of the JuvixTree tests that did not work with
JuvixAsm->Nockma because they were too slow.
## Notes
We have changed [test031: temp stack with
branching](22ee87f0e7/tests/Tree/positive/test031.jvt)
to avoid using negative numbers (because negative integers are not
supported in Nockma).
Three tree tests trace/output lists. Lists are serialised differently by
the asm and nockma pretty printers so they cannot share a single test
output file. We have created separate nockma output files for these
tests (see eg.
[test028.nockma.out](22ee87f0e7/tests/Tree/positive/out/test028.nockma.out)).
* Closes https://github.com/anoma/juvix/issues/2606
---------
Co-authored-by: Paul Cadman <git@paulcadman.dev>
Co-authored-by: Lukasz Czajka <lukasz@heliax.dev>
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