fails:Enumerable#each_with_index passes each element and its index to block
fails:Enumerable#each_with_index provides each element to the block
fails:Enumerable#each_with_index provides each element to the block and its index
fails:Enumerable#each_with_index binds splat arguments properly
fails:Enumerable#each_with_index returns an enumerator if no block
fails:Enumerable#each_with_index passes extra parameters to each
