Add _print_name to Truncated and CustomDists

[ricardoV94]

Description

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

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📚 Documentation preview 📚: https://pymc--7205.org.readthedocs.build/en/7205/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.29%. Comparing base (30d00fe) to head (d9687a8).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7205      +/-   ##
==========================================
- Coverage   92.29%   90.29%   -2.00%     
==========================================
  Files         100      100              
  Lines       16874    16875       +1     
==========================================
- Hits        15574    15238     -336     
- Misses       1300     1637     +337     

Files	Coverage Δ
pymc/distributions/distribution.py	94.29% <ø> (ø)
pymc/distributions/truncated.py	99.40% <100.00%> (+<0.01%)	⬆️

... and 6 files with indirect coverage changes

[jessegrabowski]

Looks good. Is Truncated the only "wrapper" distribution that needs special treatment? I thinking aboutCensored, maybe?

[ricardoV94]

Looks good. Is Truncated the only "wrapper" distribution that needs special treatment? I thinking aboutCensored, maybe?

Truncated is special because it doesn't just operate on the input dist, but does either icdf or rejection sampling, so it doesn't print the name nicely, whereas for Censored you see something like Censored(normal(0, 1), ...)