Add spec for when a Fiber tries to resume itself
Add spec for when a Fiber tries to resume itself

nobu/rubyspec,sgarciac/spec,nobu/rubyspec,ruby/rubyspec,ruby/rubyspec,sgarciac/spec,eregon/rubyspec,eregon/rubyspec,sgarciac/spec,ruby/spec,eregon/rubyspec,ruby/spec,ruby/spec,nobu/rubyspec