rb_thread_set_current  111 thread.c         rb_thread_set_current(_th_stored); \
rb_thread_set_current  377 thread.c       	rb_thread_set_current(th);
rb_thread_set_current  944 thread.c       	rb_thread_set_current(th);
rb_thread_set_current  969 thread.c           rb_thread_set_current(th);
rb_thread_set_current 1925 vm.c           	rb_thread_set_current(th);