kh_put return value should be found index

include/mruby/khash.h

@@ -190,6 +190,7 @@ kh_fill_flags(uint8_t *p, uint8_t c, size_t len)
       h->keys[del_k] = key;                                             \
       h->ed_flags[del_k/4] &= ~__m_del[del_k%4];                        \
       h->size++;                                                        \
+      return del_k;                                                           \
     }                                                                   \
     else {                                                              \
       /* put at empty */                                                \
@@ -197,9 +198,9 @@ kh_fill_flags(uint8_t *p, uint8_t c, size_t len)
       h->ed_flags[k/4] &= ~__m_empty[k%4];                              \
       h->size++;                                                        \
       h->n_occupied++;                                                  \
-    }                                                                   \
       return k;                                                           \
     }                                                                   \
+  }                                                                     \
   void kh_del_##name(mrb_state *mrb, kh_##name##_t *h, khint_t x)       \
   {                                                                     \
     (void)mrb;                                                          \