…ndencies when dumped with PhpDumper

This PR was squashed before being merged into the 6.4 branch.

Discussion
----------

[DependencyInjection] Do not preload functions

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | yes
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| License       | MIT

Ensure `preload.php` does not have functions in preloaded class names:
```
$ grep "current" var/cache/prod/App_KernelProdContainer.preload.php
$classes[] = 'current';
```

Happens because the DI declares a factory, which uses built-in `\current`: https://github.com/symfony/symfony/blob/v6.4.18/src/Symfony/Bundle/FrameworkBundle/Resources/config/http_client.php#L39
And then the "class" is added by https://github.com/symfony/symfony/blob/v6.4.18/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php#L2317

Similar to the #36866

Commits
-------

b52b760dff2 [DependencyInjection] Do not preload functions

* 6.4:
  [WebProfilerBundle] Fix tests
  [Cache] Tests for Redis Replication with cache
  [BrowserKit] Fix submitting forms with empty file fields
  [WebProfilerBundle] Fix interception for non conventional redirects
  [DependencyInjection] Do not preload functions
  [DependencyInjection] Fix cloned lazy services not sharing their dependencies when dumped with PhpDumper
  [HttpClient] Fix activity tracking leading to negative timeout errors
  [Security] Return null instead of empty username to fix deprecation notice
  [DependencyInjection] Fix env default processor with scalar node

…skipping them.

…ttribute

* 6.4:
  [DependencyInjection] Defer check for circular references instead of skipping them.
  [Validator] Synchronize IBAN formats