Introduce FileNode to handle file-level changes #31845

Job	Run time
Preload php-parser Order	21s
Composer Validate	16s
Detect composer dependency issues	22s
Active Classes	30s
Check no "*.php" files in rules Fixture directory	19s
Commented Code	23s
Help and Version	22s
PHPStan	1m 29s
Check fixture classes are different to nodes	27s
Check before/after test fixture on no-changes	16s
Run with Space in Directory	22s
Compatible PHPStan versions	23s
PHP Linter	31s
Finalize classes	26s
	6m 27s

Provide feedback