feat(decode): runtime support for structures

[Stevengre]

No description provided.

[Stevengre]

@jberthold I failed to pass test_prove_rs[interior-mut-fail]. I think it might be caused by preserve-definedness missing problem, but I'm not sure. Do you have any idea about this error?

====================================================== short test summary info ======================================================
FAILED kmir/src/tests/integration/test_integration.py::test_prove_rs[interior-mut-fail] - pyk.cterm.symbolic.CTermSMTError: #Ceil ( ListItem ( newLocal ( ty ( 68 ) , mutabilityMut ) ) ListItem ( typedValue ( Integer ( ...
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! xdist.dsession.Interrupted: stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
====================================== 1 failed, 198 passed, 40 skipped in 2194.85s (0:36:34) =======================================

Yes, the #Ceil indicates that the legacy backend did a rewrite here, possibly because you are missing a preserves-definedness. Taking a closer look

[jberthold]

We have a make target update-smir-json which you could use. You just have to create an empty my/new/file.smir.json file first and then run make update-smir-json TARGETS=my/new/file.smir.json

[Stevengre]

Thank you! Could I keep this file or just delete it?

[jberthold]

Looking good now, and the examples are working!
I have two suggestions for refactoring (to let fewer exceptional cases pass through) but pre-approving.