Enumerable#find_index should use #== semantics for testing equality
Enumerable#find_index should use #== semantics for testing equality

* This matches the behavior of MRI.

wied03/rubyspec,eregon/rubyspec,kachick/rubyspec,ruby/spec,nobu/rubyspec,eregon/rubyspec,BanzaiMan/rubyspec,ruby/spec,sgarciac/spec,BanzaiMan/rubyspec,ruby/rubyspec,ruby/rubyspec,ruby/spec,kachick/rubyspec,wied03/rubyspec,wied03/rubyspec,sgarciac/spec,kachick/rubyspec,nobu/rubyspec,nobu/rubyspec,sgarciac/spec,eregon/rubyspec