wrap Module properties

[cgarciae]

Co-authored-by: Marcus Chiam marcus.chiam@hotmail.com

What does this PR do?

Fixes #2537. Adds wrappers for property attributes for Module primarily to catch AttributeErrors in order to give a better error message (see discussion in #2537). Implementation follows the same strategy for our current method wrapper but specializes it for propertys.

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[codecov-commenter]

Codecov Report

Merging #2541 (63ffcfb) into main (521f516) will increase coverage by 0.08%.
The diff coverage is 88.46%.

@@            Coverage Diff             @@
##             main    #2541      +/-   ##
==========================================
+ Coverage   79.47%   79.55%   +0.08%     
==========================================
  Files          49       49              
  Lines        5204     5249      +45     
==========================================
+ Hits         4136     4176      +40     
- Misses       1068     1073       +5     

Impacted Files	Coverage Δ
flax/linen/module.py	92.27% <87.75%> (-0.45%)	⬇️
flax/errors.py	87.75% <100.00%> (+0.38%)	⬆️
flax/core/scope.py	89.77% <0.00%> (-0.03%)	⬇️
flax/training/prefetch_iterator.py	0.00% <0.00%> (ø)

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[levskaya]

Looks good - thank you!

Just one Q: and forgive me since we talked about this before and I'm spacing, but just for posterity: why do we check for staticmethod/classmethod inside _get_local_descriptor_names after excluding callables?

[cgarciae]

@levskaya curiously staticmethod and classmethod objects are not callable themselves, their __get__ method returns a callable.