variable.c: Fix too_complex shape initialization

`SHAPE_OBJ_TOO_COMPLEX` is a `shape_type` not a `shape_id_t`.

Author: byroot

variable.c

@@ -1709,7 +1709,7 @@ generic_ivar_set_too_complex_table(VALUE obj, void *data)
     if (!rb_gen_ivtbl_get(obj, 0, &ivtbl)) {
         ivtbl = xmalloc(sizeof(struct gen_ivtbl));
 #if !SHAPE_IN_BASIC_FLAGS
-        ivtbl->shape_id = SHAPE_OBJ_TOO_COMPLEX;
+        ivtbl->shape_id = OBJ_TOO_COMPLEX_SHAPE_ID;
 #endif
         ivtbl->as.complex.table = st_init_numtable_with_size(1);
 
@@ -2117,7 +2117,7 @@ rb_copy_generic_ivar(VALUE clone, VALUE obj)
         if (rb_shape_obj_too_complex(obj)) {
             new_ivtbl = xmalloc(sizeof(struct gen_ivtbl));
 #if !SHAPE_IN_BASIC_FLAGS
-            new_ivtbl->shape_id = SHAPE_OBJ_TOO_COMPLEX;
+            new_ivtbl->shape_id = OBJ_TOO_COMPLEX_SHAPE_ID;
 #endif
             new_ivtbl->as.complex.table = st_copy(obj_ivtbl->as.complex.table);
         }