--TEST-- Backtrace in nested function call --FILE-- start(); $fiber->resume(); ?> --EXPECTF-- Fatal error: Uncaught Exception in %sbacktrace-nested.php:%d Stack trace: #0 %sbacktrace-nested.php(%d): suspend_fiber() #1 [internal function]: {closure:%s:%d}() #2 %sbacktrace-nested.php(%d): Fiber->resume() #3 {main} thrown in %sbacktrace-nested.php on line %d