[ruby/irb] Don't insert new methods to Test::Unit::TestCase
Ruby CI runs irb and other Ruby core/stdlib tests in the same process.
So adding irb-specific helper to Test::Unit::TestCase could potentially
pollute other components' tests and should be avoided.
[ruby/irb] Don't insert new methods to Test::Unit::TestCase
Ruby CI runs irb and other Ruby core/stdlib tests in the same process.
So adding irb-specific helper to Test::Unit::TestCase could potentially
pollute other components' tests and should be avoided.