RUBY_MARK_LEAVE   214 cont.c             RUBY_MARK_LEAVE("cont");
RUBY_MARK_LEAVE   315 cont.c             RUBY_MARK_LEAVE("cont");
RUBY_MARK_LEAVE   133 iseq.c             RUBY_MARK_LEAVE("iseq");
RUBY_MARK_LEAVE   150 nacl/pepper_main.c   RUBY_MARK_LEAVE("PepperInstance"0);
RUBY_MARK_LEAVE    66 proc.c             RUBY_MARK_LEAVE("proc");
RUBY_MARK_LEAVE   272 proc.c             RUBY_MARK_LEAVE("binding");
RUBY_MARK_LEAVE   516 vm.c               RUBY_MARK_LEAVE("env");
RUBY_MARK_LEAVE  2013 vm.c               RUBY_MARK_LEAVE("vm");
RUBY_MARK_LEAVE  2280 vm.c               RUBY_MARK_LEAVE("thread");