fix mark miss of Env (which is pointed by prev_ep).
vm.c (rb_execution_context_mark): r61624 and r61659 introduce marking miss
bug for Env objects as a prev_ep which is contained by Proc objects because
Proc objects can be collected when they should be living and Env objects
will collected unexpectedly. This patch solves this problem.
Added by ko1 (Koichi Sasada) over 7 years ago
fix mark miss of Env (which is pointed by prev_ep).
bug for Env objects as a prev_ep which is contained by Proc objects because
Proc objects can be collected when they should be living and Env objects
will collected unexpectedly. This patch solves this problem.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61691 b2dd03c8-39d4-4d8f-98ff-823fe69b080e