RUBY_EVENT_C_RETURN 3577 thread.c             case RUBY_EVENT_C_RETURN:
RUBY_EVENT_C_RETURN 3609 thread.c       	p->event == RUBY_EVENT_C_RETURN) {
RUBY_EVENT_C_RETURN   81 vm_eval.c      	EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, recv, id, klass);
RUBY_EVENT_C_RETURN  384 vm_insnhelper.c     EXEC_EVENT_HOOK(th, RUBY_EVENT_C_RETURN, recv, id, klass);