tenderlove	2019-04-17 15:16:35 +0900 (Wed, 17 Apr 2019)

  New Revision: 67584

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=67584

  Log:
    Super should be marked regardless of whether or not ext exists

  Modified files:
    trunk/gc.c
Index: gc.c
===================================================================
--- gc.c	(revision 67583)
+++ gc.c	(revision 67584)
@@ -4981,19 +4981,19 @@ gc_mark_children(rb_objspace_t *objspace https://github.com/ruby/ruby/blob/trunk/gc.c#L4981
       case T_CLASS:
       case T_MODULE:
 	mark_m_tbl(objspace, RCLASS_M_TBL(obj));
+	gc_mark(objspace, RCLASS_SUPER((VALUE)obj));
 	if (!RCLASS_EXT(obj)) break;
         mark_tbl_no_pin(objspace, RCLASS_IV_TBL(obj));
 	mark_const_tbl(objspace, RCLASS_CONST_TBL(obj));
-	gc_mark(objspace, RCLASS_SUPER((VALUE)obj));
 	break;
 
       case T_ICLASS:
 	if (FL_TEST(obj, RICLASS_IS_ORIGIN)) {
 	    mark_m_tbl(objspace, RCLASS_M_TBL(obj));
 	}
+	gc_mark(objspace, RCLASS_SUPER((VALUE)obj));
 	if (!RCLASS_EXT(obj)) break;
 	mark_m_tbl(objspace, RCLASS_CALLABLE_M_TBL(obj));
-	gc_mark(objspace, RCLASS_SUPER((VALUE)obj));
 	break;
 
       case T_ARRAY:

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