rb_thread_kill    322 ext/pty/pty.c      rb_thread_kill(info->thread);
rb_thread_kill    325 include/ruby/intern.h VALUE rb_thread_kill(VALUE);
rb_thread_kill   1422 thread.c           return rb_thread_kill(th);
rb_thread_kill   1439 thread.c           return rb_thread_kill(GET_THREAD()->self);
rb_thread_kill   3722 thread.c           rb_define_method(rb_cThread, "kill", rb_thread_kill, 0);
rb_thread_kill   3723 thread.c           rb_define_method(rb_cThread, "terminate", rb_thread_kill, 0);
rb_thread_kill   3724 thread.c           rb_define_method(rb_cThread, "exit", rb_thread_kill, 0);