Add `const` to `irep` structure to place data on ROM.
@@ -53,7 +53,7 @@ typedef struct mrb_irep {
const mrb_code *iseq;
const mrb_pool_value *pool;
const mrb_sym *syms;
- const struct mrb_irep **reps;
+ const struct mrb_irep * const *reps;
const struct mrb_lvinfo *lv;
/* debug info */
