Implement support for finalizers

[vchuravy]

As long as the finalizer is const this should be the right thing to do for most cases.

[github-actions]

Your PR no longer requires formatting changes. Thank you for your contribution!

[vchuravy]

Motivated by #518 (comment)

[codecov]

Codecov Report

❌ Patch coverage is 0% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 69.92%. Comparing base (3eaa1fb) to head (344d8db).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/internal_rules.jl	0.00%	23 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2736      +/-   ##
==========================================
- Coverage   70.01%   69.92%   -0.09%     
==========================================
  Files          58       58              
  Lines       19300    19323      +23     
==========================================
- Hits        13513    13512       -1     
- Misses       5787     5811      +24     

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[github-actions]

Benchmark Results

	main	344d8db...	main / 344d8db...
basics/make_zero/namedtuple	0.0559 ± 0.0021 μs	0.0542 ± 0.0027 μs	1.03 ± 0.065
basics/make_zero/struct	0.265 ± 0.0093 μs	0.258 ± 0.0062 μs	1.03 ± 0.044
basics/overhead	5.24 ± 0.92 ns	5.56 ± 0.011 ns	0.942 ± 0.17
basics/remake_zero!/namedtuple	0.234 ± 0.017 μs	0.235 ± 0.012 μs	0.999 ± 0.087
basics/remake_zero!/struct	0.239 ± 0.011 μs	0.237 ± 0.014 μs	1.01 ± 0.077
fold_broadcast/multidim_sum_bcast/1D	10.4 ± 1.8 μs	10.3 ± 0.33 μs	1.01 ± 0.17
fold_broadcast/multidim_sum_bcast/2D	12.2 ± 0.29 μs	12.2 ± 0.28 μs	1 ± 0.033
time_to_load	1.3 ± 0.038 s	1.28 ± 0.021 s	1.01 ± 0.034

Benchmark Plots

A plot of the benchmark results has been uploaded as an artifact at https://github.com/EnzymeAD/Enzyme.jl/actions/runs/19147239268/artifacts/4491418091.

[vchuravy]

I am going to merge this, but I am happy to revisit it.

[wsmoses]

retrospective lgtm