[php-src] Issue #11121: Segfault when using ReflectionFiber

Issue: https://github.com/php/php-src/issues/11121 Author: danog ### Description The following code: https://paste.daniil.it/segfault_reflectionfiber_v2.tar.xz (all dependencies are exactly the ones specified in composer.lock, with a few manual patches made to vendor/revolt/event-loop/src/EventLoop/Internal/AbstractDriver.php, vendor/danog/madelineproto/src/GarbageCollector.php to enable ReflectionFiber logging; use API ID and API hash 1, 1 to test) Resulted in a segfault with this gdb backtrace: ``` (gdb) back #0 zend_fetch_debug_backtrace (return_value=0x7fffe727d2e0, skip_last=<optimized out>, options=1, limit=0) at /usr/src/debug/php/php-8.2.5/Zend/zend_builtin_functions.c:1748 #1 0x00005555557713d4 in zim_ReflectionFiber_getTrace (execute_data=0x7fffe727d310, return_value=0x7fffe727d2e0) at /usr/src/debug/php/php-8.2.5/ext/reflection/php_reflection.c:7066 #2 0x00005555558f034c in ZEND_DO_FCALL_SPEC_RETVAL_USED_HANDLER (execute_data=0x7fffe727d1e0) at /usr/src/debug/php/php-8.2.5/Zend/zend_vm_execute.h:1951 #3 0x0000555555939438 in execute_ex (ex=<optimized out>) at /usr/src/debug/php/php-8.2.5/Zend/zend_vm_execute.h:55823 #4 0x00005555558b57fe in zend_call_function (fci=<optimized out>, fci_cache=<optimized out>) at /usr/src/debug/php/php-8.2.5/Zend/zend_execute_API.c:947 #5 0x000055555596ba5f in zend_fiber_execute (transfer=0x7fffe63fbfb0) at /usr/src/debug/php/php-8.2.5/Zend/zend_fibers.c:504 #6 0x000055555596b7e2 in zend_fiber_trampoline (data=...) at /usr/src/debug/php/php-8.2.5/Zend/zend_fibers.c:299 #7 0x0000555555a05e97 in make_fcontext () at /usr/src/debug/php/php-8.2.5/Zend/asm/make_x86_64_sysv_elf_gas.S:135 #8 0x0000000000000000 in ?? () ``` But I expected this output instead: No segfault ### PHP Version 8.2.5 ### Operating System Arch linux