rspec/rspec-core — pull request #1078 by myronmarston (2013-09-18 16:40:31+00:00)
Title: Error rather than warn when `let` accessed in :all hook.

Before we were just warning of deprecation in `before(:all)` but not `after(:all)`, and this raises a warning in both now (for consistency). We should probably add a warning for `after(:all)` to 2.99.

Anyone want to review this?