Add integration tests for Bijectors

[mhauru]

There have been some regressions that cause various crashes and errors with Bijectors.jl and Enzyme v0.13. To guard against this in the future, I think it would be useful to introduce some integration tests for Bijectors, like we are doing in #1813 and #1819 for Turing.jl and Distributions.jl.

I've added a basic check of running forward and reverse mode on all bijector types with at least one argument, plus some extra ones that have caused trouble in the past. I've marked all failing ones, and reported them as separate issues. Here's a list:

• Illegal type analysis, Bijectors.PlanarLayer #2035
• Bijectors: Unknown concrete type in arraycopy_common. tt: {[]:Pointer} #2030
• Bijectors, reverse mode hangs #2033
• Julia crash, illegal Instruction 4, Bijectors PDBijector #2034
• Segmentation fault, Bijectors.RadialLayer #2036
• Bijectors Illegal instruction: 4 #2029

cc @yebai

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.49%. Comparing base (037dfed) to head (263afd2).
Report is 191 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2037      +/-   ##
==========================================
+ Coverage   67.50%   70.49%   +2.98%     
==========================================
  Files          31       42      +11     
  Lines       12668    15247    +2579     
==========================================
+ Hits         8552    10748    +2196     
- Misses       4116     4499     +383     

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