Fixes #21007 - new unattended action 'failed'

Fixes #19894 - Fix Style/RedundantParentheses cop

Fixes #19857 - Fix Style/EachWithObject cop

fixes #21832 - permission test: do not assume required login

fixes #18565 - move constantize inside access permission tests

Matches normal test loading so constants (and source files) are only
loaded when the test is executed. Syntax errors will then cause a
failure for tests loading the file instead of outside the test process.

Fixes #16990 - make access_perm test reusable