chore: support for phpdocumentor/reflection 4 in snippets (#5287)
chore: support for phpdocumentor/reflection 4 in snippets (#5287)

* chore: support for phpdocumentor 4 in snippets

* add class descriptions

* fix styles

* Update Core/src/Testing/Reflection/ReflectionHandlerV3.php

Co-authored-by: David Supplee <f308a3690c3c69f45e9b087ccbd2dadcb7b67b65@gmail.com>

* add copyright headers

* Update Core/src/Testing/Reflection/ReflectionHandlerV4.php

Co-authored-by: David Supplee <f308a3690c3c69f45e9b087ccbd2dadcb7b67b65@gmail.com>

* Update Core/src/Testing/Reflection/ReflectionHandlerV3.php

Co-authored-by: David Supplee <f308a3690c3c69f45e9b087ccbd2dadcb7b67b65@gmail.com>

* Update Core/src/Testing/Reflection/ReflectionHandlerFactory.php

Co-authored-by: David Supplee <f308a3690c3c69f45e9b087ccbd2dadcb7b67b65@gmail.com>

* Update Core/src/Testing/Reflection/DescriptionFactory.php

Co-authored-by: David Supplee <f308a3690c3c69f45e9b087ccbd2dadcb7b67b65@gmail.com>

Co-authored-by: David Supplee <f308a3690c3c69f45e9b087ccbd2dadcb7b67b65@gmail.com>
googleapis/google-cloud-php-vision,googleapis/google-cloud-php-vision