fix Ractor.make_shareable() with Class/Module

To check shareable-ness, rb_ractor_shareable_p() is needed
for Class/Module objects isntead of checking flags.

1 files changed, 1 insertions, 1 deletions

diff --git a/ractor.c b/ractor.c
index 180795b9c1..d2d4ee2e38 100644
--- a/ractor.c
+++ b/ractor.c
@@ -2396,7 +2396,7 @@ make_shareable_check_shareable(VALUE obj)
     VM_ASSERT(!SPECIAL_CONST_P(obj));
     bool made_shareable = false;
 
-    if (RB_OBJ_SHAREABLE_P(obj)) {
+    if (rb_ractor_shareable_p(obj)) {
         return traverse_skip;
     }
     else if (!frozen_shareable_p(obj, &made_shareable)) {