Move `Kernel#equal? to `BasicObject`
MODIFY
src/class.c
src/class.c
@@ -2154,6 +2154,7 @@ mrb_init_class(mrb_state *mrb)
mrb_define_method(mrb, bob, "!=", mrb_obj_not_equal_m, MRB_ARGS_REQ(1));
mrb_define_method(mrb, bob, "__id__", mrb_obj_id_m, MRB_ARGS_NONE()); /* 15.3.1.3.4 */
mrb_define_method(mrb, bob, "__send__", mrb_f_send, MRB_ARGS_ANY()); /* 15.3.1.3.5 */
+ mrb_define_method(mrb, bob, "equal?", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.11 */
mrb_define_method(mrb, bob, "instance_eval", mrb_obj_instance_eval, MRB_ARGS_ANY()); /* 15.3.1.3.18 */
mrb_define_class_method(mrb, cls, "new", mrb_class_new_class, MRB_ARGS_OPT(1));

MODIFY
src/kernel.c
src/kernel.c
@@ -780,7 +780,6 @@ mrb_init_kernel(mrb_state *mrb)
mrb_define_method(mrb, krn, "clone", mrb_obj_clone, MRB_ARGS_NONE()); /* 15.3.1.3.8 */
mrb_define_method(mrb, krn, "dup", mrb_obj_dup, MRB_ARGS_NONE()); /* 15.3.1.3.9 */
mrb_define_method(mrb, krn, "eql?", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.10 */
- mrb_define_method(mrb, krn, "equal?", mrb_obj_equal_m, MRB_ARGS_REQ(1)); /* 15.3.1.3.11 */
mrb_define_method(mrb, krn, "extend", mrb_obj_extend_m, MRB_ARGS_ANY()); /* 15.3.1.3.13 */
mrb_define_method(mrb, krn, "freeze", mrb_obj_freeze, MRB_ARGS_NONE());
mrb_define_method(mrb, krn, "frozen?", mrb_obj_frozen, MRB_ARGS_NONE());

Move `Kernel#equal? to `BasicObject`