[php-src] Issue #8299: phpdbg 8.1 segmentation fault

Issue: https://github.com/php/php-src/issues/8299 Author: croensch ### Description Mid-sized test-suite seems to halt at phpdbg_end_oplog() - i only installed xdebug to trace it. The following code: ```bash phpdbg -qrr -dmemory_limit="-1" -dxdebug.mode=trace -dxdebug.start_with_request=yes ./vendor/bin/phpunit --coverage-clover=build/logs/clover.xml ``` Resulted in this output: ``` 60.0203 118233448 -> floor($num = 0.0044781782547222) /application/vendor/phpunit/php-timer/src/Duration.php:59 60.0203 118233448 -> floor($num = 0.26869069528333) /application/vendor/phpunit/php-timer/src/Duration.php:61 60.0204 118233448 -> floor($num = 16.121441717) /application/vendor/phpunit/php-timer/src/Duration.php:63 60.0204 118234168 -> array_unique($array = []) /application/vendor/phpunit/phpunit/src/Util/Test.php:636 60.0205 118234168 -> array_keys($array = []) /application/vendor/sebastian/code-unit/src/Mapper.php:50 60.0205 118234200 -> ksort($array = []) /application/vendor/sebastian/code-unit/src/Mapper.php:56 60.0205 118233848 -> array_unique($array = []) /application/vendor/phpunit/phpunit/src/Util/Test.php:636 60.0205 118233848 -> array_keys($array = []) /application/vendor/sebastian/code-unit/src/Mapper.php:50 60.0205 118233880 -> ksort($array = []) /application/vendor/sebastian/code-unit/src/Mapper.php:56 60.0205 118233432 -> phpdbg_end_oplog() /application/vendor/phpunit/php-code-coverage/src/Driver/PhpdbgDriver.php:47 ``` But I expected this output instead: ``` ? ``` Also happens in PHP 8.0.x, could not test 7.4 yet. ### PHP Version PHP 8.1.4 ### Operating System Debian