Crash in UselessSetterCall

[jonas054]

This program causes an error in UselessSetterCall. It is very similar to an existing spec but has an or assignment. Perhaps you can look at it, @yujinakayama.

def test(some_arg)
  some_arg ||= Top.new
  some_arg.attr = 5
end

Stack trace:

     NoMethodError:
       undefined method `type' for nil:NilClass
     # ./lib/rubocop/cop/lint/useless_setter_call.rb:72:in `block in contains_object_passed_as_argument?'
     # ./lib/rubocop/cop/cop.rb:171:in `block (2 levels) in on_node'

[yujinakayama]

OK 👍