compiler: Fixup DefFunction reconstruction

[FabioLuporini]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.17%. Comparing base (347d2c7) to head (d33ee66).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2945      +/-   ##
==========================================
- Coverage   83.38%   79.17%   -4.21%     
==========================================
  Files         248      249       +1     
  Lines       51960    52241     +281     
  Branches     4480     4500      +20     
==========================================
- Hits        43326    41364    -1962     
- Misses       7879    10041    +2162     
- Partials      755      836      +81     

Flag	Coverage Δ
pytest-gpu-aomp-amdgpuX	?
pytest-gpu-gcc-	77.99% <100.00%> (-0.10%)	⬇️
pytest-gpu-icx-	43.10% <13.04%> (-34.91%)	⬇️
pytest-gpu-nvc-nvidiaX	?

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