ssa: PyVal support pointer to long

[visualfc]

types.UnsafePointer/types.Pointer => py.long

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.94%. Comparing base (f43e2c0) to head (54dfd3c).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1199   +/-   ##
=======================================
  Coverage   87.93%   87.94%           
=======================================
  Files          32       32           
  Lines        7653     7658    +5     
=======================================
+ Hits         6730     6735    +5     
  Misses        844      844           
  Partials       79       79           

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