method_inspect   1842 proc.c             rb_define_method(rb_cMethod, "inspect", method_inspect, 0);
method_inspect   1843 proc.c             rb_define_method(rb_cMethod, "to_s", method_inspect, 0);
method_inspect   1862 proc.c             rb_define_method(rb_cUnboundMethod, "inspect", method_inspect, 0);
method_inspect   1863 proc.c             rb_define_method(rb_cUnboundMethod, "to_s", method_inspect, 0);