dialect: Deprecating .get in llvm dialect

[ShaolunWang]

Making respective changes from .get to init in mpi lowering and llvm/mpi tests

[codecov]

Codecov Report

Patch coverage: 87.50% and no project coverage change.

Comparison is base (d8f4b59) 89.65% compared to head (640af51) 89.65%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1349   +/-   ##
=======================================
  Coverage   89.65%   89.65%           
=======================================
  Files         191      191           
  Lines       24939    25007   +68     
  Branches     3760     3769    +9     
=======================================
+ Hits        22358    22420   +62     
- Misses       1987     1992    +5     
- Partials      594      595    +1     

Files Changed	Coverage Δ
xdsl/transforms/lower_mpi.py	92.39% <ø> (ø)
xdsl/dialects/llvm.py	87.62% <85.18%> (-0.93%)	⬇️
tests/dialects/test_llvm.py	100.00% <100.00%> (ø)
xdsl/transforms/printf_to_llvm.py	82.60% <100.00%> (ø)

... and 7 files with indirect coverage changes

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[AntonLydike]

I think this is much easier to review once you make get just call __init__... Otherwise it looks good! Thanks!

[ShaolunWang]

Rebased this so github can actually show my changes here 🙃

[math-fehr]

👍

[AntonLydike]

Perfect! Thanks!