merge revision(s) 55063: [Backport #12391]

	* thread.c (recursive_list_access): a object id may be a Bignum.  so,
	  the list must be a objhash, instead of a identhash.
	  this fixes many test errors on mswin64 CI.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@55383 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/thread.c b/thread.c
index 4e0340d801..a0e31c5326 100644
--- a/thread.c
+++ b/thread.c
@@ -4306,7 +4306,7 @@ recursive_list_access(VALUE sym)
 	list = rb_hash_aref(hash, sym);
     }
     if (NIL_P(list) || !RB_TYPE_P(list, T_HASH)) {
-	list = rb_ident_hash_new();
+	list = rb_hash_new();
 	rb_hash_aset(hash, sym, list);
     }
     return list;