compiler: Patch halo exchange placement at stree construction time

[FabioLuporini]

tests in PRO

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.68%. Comparing base (4109b58) to head (2110029).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3013   +/-   ##
=======================================
  Coverage   83.68%   83.68%           
=======================================
  Files         257      257           
  Lines       54711    54713    +2     
  Branches     4686     4687    +1     
=======================================
+ Hits        45785    45787    +2     
  Misses       8115     8115           
  Partials      811      811           

Flag	Coverage Δ
pytest-gpu-aomp-amdgpuX	68.50% <100.00%> (+<0.01%)	⬆️
pytest-gpu-gcc-	78.31% <100.00%> (+<0.01%)	⬆️
pytest-gpu-icx-	78.25% <100.00%> (+0.01%)	⬆️
pytest-gpu-nvc-nvidiaX	69.12% <100.00%> (-0.02%)	⬇️

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