Add XMLSerializer->appendToWriter()

[staabm]

todo

• test in phpunit/code-coverage
• add unit test

With support to write into a consumer given XMLWriter tokinzer results can be consumed more efficiently, because there no longer is a DOM to XMLWriter conversion required.

[staabm]

this is good to go and a requirement for the php-code-coverage perf improvement in sebastianbergmann/php-code-coverage#1125

[staabm]

@theseer do you have a opinion on this one? :)

[theseer]

@staabm After having updated a few things to get CI back working, this is now failing. I do not understand the error though. It doesn't make sense to me ;)

[theseer]

PHPUnit 10.5.59 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.4.15
Configuration: /home/theseer/storage/php/tokenizer/phpunit.xml

....................E...                                          24 / 24 (100%)

Time: 00:00.030, Memory: 15.10 MB

There was 1 PHPUnit test runner warning:

1) XDEBUG_MODE=coverage (environment variable) or xdebug.mode=coverage (PHP configuration setting) has to be set

--

There was 1 error:

1) TheSeer\Tokenizer\XMLSerializerTest::testCanAppendToWriter
Error: Call to undefined method TheSeer\Tokenizer\XMLSerializer::appendToWriter()

/home/theseer/storage/php/tokenizer/tests/XMLSerializerTest.php:39

ERRORS!
Tests: 24, Assertions: 30, Errors: 1, PHPUnit Warnings: 1, PHPUnit Deprecations: 1.