…eal one instead (nicolas-grekas)This PR was merged into the 4.4 branch.Discussion----------[FrameworkBundle] Don't reset the test container but the real one instead| Q             | A| ------------- | ---| Branch?       | 4.4 for features / 3.4 or 4.3 for bug fixes <!-- see below -->| Bug fix?      | yes/no| New feature?  | yes/no <!-- please update src/**/CHANGELOG.md files -->| Deprecations? | yes/no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->| Tickets       | Fix #... <!-- prefix each issue number with "Fix #", if any -->| License       | MIT| Doc PR        | -After#31202 and#32056, the tearDown method keeps throwing deprecation notices about "Getting the container from a non-booted kernel". The reason is that resetting the test-container calls `$kernel->getContainer()` while the kernel has been shut down.This fixes it and a few other glitches found meanwhile.Commits-------8e16143 [FrameworkBundle] Dont reset the test container but the real one instead

…icolas-grekas)This PR was merged into the 4.4 branch.Discussion----------[FrameworkBundle] Fix resetting container between tests| Q             | A| ------------- | ---| Branch?       | 4.4| Bug fix?      | yes| New feature?  | no| Deprecations? | no| Tickets       |Fix#40965,fix#45580| License       | MIT| Doc PR        | -Replaces#45479 and#45581, related to#34078.Calling `boot()` on an already booted kernel does reset the container, so we don't need to care anymore about the state of kernel.#45580 is fixed by removing `private static $kernelContainer`, which can be out of sync with `static::$kernel->getContainer()` since `KernelBrowser` creates new containers when shutting down the kernel between requests.Commits-------4453bdb [FrameworkBundle] Fix resetting container between tests