phpstan analyse src/ORM/Query.php --debug 
Note: Using configuration file /srv/sites/cake-apps/cakephp/phpstan.neon.
/path/to/cakephp/src/ORM/Query.php
PHP Fatal error:  Uncaught LogicException: Failed to find parent class of constant "APPEND". in phar:///path/to/.phive/phars/phpstan-0.12.27.phar/vendor/ondrejmirtes/better-reflection/src/Reflection/ReflectionParameter.php:176
Stack trace:
#0 phar:///path/to/.phive/phars/phpstan-0.12.27.phar/vendor/ondrejmirtes/better-reflection/src/Reflection/ReflectionParameter.php(143): _HumbugBox2376040b7d58\Roave\BetterReflection\Reflection\ReflectionParameter->findParentClassDeclaringConstant('APPEND')
#1 phar:///path/to/.phive/phars/phpstan-0.12.27.phar/vendor/ondrejmirtes/better-reflection/src/Reflection/ReflectionParameter.php(241): _HumbugBox2376040b7d58\Roave\BetterReflection\Reflection\ReflectionParameter->parseDefaultValueNode()
#2 phar:///path/to/.phive/phars/phpstan-0.12.27.phar/vendor/ondrejmirtes/better-reflection/src/Reflection/Adapter/ReflectionParameter.php(144): _HumbugBox2376040b7d58\Roave\BetterReflection\Reflection\ReflectionParameter->getDefaultValue()
#3 phar:///path/to/.phive/phars/phpstan-0.12.27.phar in phar:///path/to/.phive/phars/phpstan-0.12.27.phar/vendor/ondrejmirtes/better-reflection/src/Reflection/ReflectionParameter.php on line 176