make common IW test mandatory

[amunger]

Fixes #12304

[codecov-commenter]

Codecov Report

Merging #12329 (e748455) into main (0048702) will decrease coverage by 1%.
The diff coverage is n/a.

❗ Current head e748455 differs from pull request most recent head 310be5b. Consider uploading reports for the commit 310be5b to get more accurate results

@@           Coverage Diff            @@
##            main   #12329     +/-   ##
========================================
- Coverage     70%      69%     -1%     
========================================
  Files        503      497      -6     
  Lines      30036    31460   +1424     
  Branches    4770     4925    +155     
========================================
+ Hits       21261    21970    +709     
- Misses      6932     7643    +711     
- Partials    1843     1847      +4     

see 493 files with indirect coverage changes