test: normalize known inspector crash as completion

[joyeecheung]

This works around a pre-existing inspector issue: if the debuggee exits too quickly the inspector can segfault while tearing down. For now normalize the trailing segfault as completion to keep the CI green until the upstream bug is fixed, since it only reproduces on some slow CI machines and is not what the probe tests care about.

Refs: #62765
Refs: #58245

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.62%. Comparing base (14e16db) to head (678ee5b).
⚠️ Report is 14 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #62851   +/-   ##
=======================================
  Coverage   89.62%   89.62%           
=======================================
  Files         706      706           
  Lines      219136   219136           
  Branches    41987    41982    -5     
=======================================
+ Hits       196404   196405    +1     
+ Misses      14611    14606    -5     
- Partials     8121     8125    +4     

see 28 files with indirect coverage changes

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[joyeecheung]

cc @legendecas @hybrist

[hybrist]

I was about to suggest something about .at(-1) / pop/push but I'm not sure it actually makes this test-only logic much easier to read. LGTM.