Make WeakAttribute.base public

[Kyle-Ye]

Expose WeakAttribute.base as a public mutable property so callers can read and replace the underlying AnyWeakAttribute.

Add a compatibility test for reading, replacing, and clearing the reference. Update the CI DarwinPrivateFrameworks revision to include the public interface. All six WeakAttribute and AnyWeakAttribute compatibility tests passed on macOS.

Dependency

• DarwinPrivateFrameworks#71 (merged).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 32.17%. Comparing base (ccacd7d) to head (e2ab8d0).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #241   +/-   ##
=======================================
  Coverage   32.17%   32.17%           
=======================================
  Files          71       71           
  Lines        2601     2601           
=======================================
  Hits          837      837           
  Misses       1764     1764           

Flag	Coverage Δ
ios	32.19% <ø> (ø)
macos	10.15% <ø> (ø)
ubuntu	12.03% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...nAttributeGraph/Attribute/Weak/WeakAttribute.swift	0.00% <ø> (ø)

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[tuist]

🛠️ Tuist Run Report 🛠️

Tests 🧪

Scheme	Status	Cache hit rate	Tests	Skipped	Ran	Commit
OpenAttributeGraph-Package	✅	0 %	138	0	138	52c68a2b2

Builds 🔨

Scheme	Status	Duration	Commit
OpenAttributeGraph	✅	5.0s	52c68a2b2
OpenAttributeGraph-Package	✅	16.2s	52c68a2b2