rb_extend_object  828 eval.c             rb_extend_object(obj, mod);
rb_extend_object 1235 ext/readline/readline.c     rb_extend_object(history, rb_mEnumerable);
rb_extend_object 2657 hash.c             rb_extend_object(envtbl, rb_mEnumerable);
rb_extend_object  854 include/ruby/ruby.h void rb_extend_object(VALUE,VALUE);
rb_extend_object  287 load.c         	rb_extend_object(th->top_self, th->top_wrapper);
rb_extend_object 1244 marshal.c                      rb_extend_object(v, m);
rb_extend_object 1480 marshal.c                          rb_extend_object(v, m);
rb_extend_object  851 vm_eval.c          rb_extend_object(th->top_self, th->top_wrapper);