rb_const_flag_t    32 constant.h         rb_const_flag_t flag;
rb_const_flag_t    27 variable.c     static void setup_const_entry(rb_const_entry_t *, VALUE, VALUE, rb_const_flag_t);
rb_const_flag_t  2612 variable.c         rb_const_flag_t visibility = CONST_PUBLIC;
rb_const_flag_t  2659 variable.c     		  rb_const_flag_t visibility)
rb_const_flag_t  2685 variable.c     		     rb_const_flag_t flag, rb_const_flag_t mask)