method_eq        1835 proc.c             rb_define_method(rb_cMethod, "==", method_eq, 1);
method_eq        1836 proc.c             rb_define_method(rb_cMethod, "eql?", method_eq, 1);
method_eq        1857 proc.c             rb_define_method(rb_cUnboundMethod, "==", method_eq, 1);
method_eq        1858 proc.c             rb_define_method(rb_cUnboundMethod, "eql?", method_eq, 1);