This PR makes the `omit`, `unusedSectionVars` and `loopingSimpArgs`
linters respect the `linter.all` option:
when `linter.all` is set to false (and the respective linter option is
unset), the linter should not report errors.
Similarly to #12559, these linters should honour the linter.all flag
being set to false. These are all remaining occurrences of this pattern.
This fixes an issue analogous to #12559.
This PR and #12560 fix all occurrences of this pattern. (The only
question is around `RCases.linter.unusedRCasesPattern`: should this also
respect this? I have left this alone for now.)
Co-authored-by: fiforeach <249703130+fiforeach@users.noreply.github.com>
