Hello ruby friends,

I have a test failure that is affecting both Rubinius and JRuby, but is 
good in MRI.

In JRuby 1.7.9:
NoMethodError:
   undefined method `feed' for #<Enumerator:0x1f72ccbd>

In Rubinius 2.2.6:
NoMethodError:
   undefined method `feed' on an instance of Enumerable::Enumerator.

This method is documented here, and an example of using it in an 
internal iterator is shown:

http://www.ruby-doc.org/core-2.1.1/Enumerator.html#method-i-feed

Why does this method only exist in C Ruby? Or is it a bug in both 
implementations? Is there a workaround?

Andrew Vit