[wip] optimizing node traversing #31657

Job	Run time
Preload php-parser Order	19s
Active Classes	24s
Composer Validate	23s
PHPStan	1m 35s
Compatible PHPStan versions	18s
Commented Code	23s
Run with Space in Directory	20s
Help and Version	19s
Check before/after test fixture on no-changes	18s
Finalize classes	23s
PHP Linter	34s
Check fixture classes are different to nodes	24s
Detect composer dependency issues	29s
Check no "*.php" files in rules Fixture directory	25s
	6m 34s

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