vm_core.h (rb_vm_t): make sleeper non-volatile
vm->sleeper is never modified in signal handlers or without GVL, so there's no need for volatile hocus-pocus.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
vm_core.h (rb_vm_t): make sleeper non-volatile
vm->sleeper is never modified in signal handlers or without GVL,
so there's no need for volatile hocus-pocus.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e