fails:Proc#eql? returns true if self and other are the same object
fails:Proc#eql? returns true if self and other are both lambdas with the same body
fails:Proc#eql? returns true if self and other are different kinds of procs but have the same body
fails:Proc#eql? returns true if the bodies of self and other are identical but represented by different objects
fails:Proc#eql? returns true if other is a dup of the original
fails:Proc#eql? returns true if both procs have the same body and environment
fails:Proc#eql? returns true if both lambdas with the same body and environment
fails:Proc#eql? returns true if both different kinds of procs with the same body and env
