[gezerui888]

Fixes #318.

Qualified definitions such as @grad function M.f(x) fail with gensym(::Expr). I changed the generated closure name to use a symbol prefix, while preserving the qualified callee for dispatch and tape recording.

The regression checks qualified and unqualified rules through direct gradients and ordinary/compiled tape replay, including primal values after inputs change.

Validation:

• Julia 1.13.1 full suite: 12,611 passed, 9 expected broken checks.
• Julia 1.10.13 macro, ChainRules, and gradient tests: 1,117 passed.
• Runic formatting check passed.

cc @devmotion

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.32%. Comparing base (608569b) to head (e95e568).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #330   +/-   ##
=======================================
  Coverage   94.32%   94.32%           
=======================================
  Files          19       19           
  Lines        1710     1710           
=======================================
  Hits         1613     1613           
  Misses         97       97           

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[devmotion]

Thank you for the PR! However, I think it's better to let standard Julia macro hygiene do its job, as for @grad_from_chainrules in #328. I fixed the issue in an analogous way in #331.