php8: ArgumentCountError test changes
php8: ArgumentCountError test changes

PHP8 is raising an ArgumentCountError for built-in functions without the use
of strict_types.

php/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,php/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,php/pecl-file_formats-yaml,php/pecl-file_formats-yaml