svm tests: add loaderv3 program cache tests

[2501babe]

Problem

while working on #6036 i wrote some more tests that id rather add in a standalone pr to decomplixify that pr and also enforce they pass against pre-6036 code, covering certain unusual code paths in program cache

Summary of Changes

add them

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.2%. Comparing base (092ec6b) to head (6eabf39).
Report is 32 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #7050   +/-   ##
=======================================
  Coverage    83.2%    83.2%           
=======================================
  Files         853      853           
  Lines      374585   374613   +28     
=======================================
+ Hits       311882   311936   +54     
+ Misses      62703    62677   -26     

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