Check all SWAP opcodes for inst. hashes when viaIR is true

[cgewecke]

#870

#871 redux, with SWAP this time. (This has to be it though - there's nowhere else they can vanish...)

(Zeppelin sorting tests seem slow and had to up container size to churn through it)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.51%. Comparing base (6b576ca) to head (32bbb7f).

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #873      +/-   ##
==========================================
+ Coverage   96.50%   96.51%   +0.01%     
==========================================
  Files          19       19              
  Lines        1029     1032       +3     
==========================================
+ Hits          993      996       +3     
  Misses         36       36              

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