Bug https://bugs.php.net/70013 was fixed before the release of PHP v7.0

…e lifetime (Guite)

This PR was squashed before being merged into the 3.4 branch.

Discussion
----------

[HttpFoundation] Fixed session migration with custom cookie lifetime

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #28577
| License       | MIT
| Doc PR        |

This PR adds the fix proposed in symfony/symfony#28577 (comment)

Commits
-------

3e824de385 [HttpFoundation] Fixed session migration with custom cookie lifetime

* 3.4:
  [PropertyAccess] fix tests
  [WebProfilerBundle] fix test
  remove assertions that can never be reached
  [PropertyAccess] Improve message of unitialized property in php 7.4
  [HttpFoundation] Fixed session migration with custom cookie lifetime
  [Serializer] Remove unused variable
  Allow URL-encoded special characters in basic auth part of URLs
  [Serializer] Fix unitialized properties (from PHP 7.4.2) when serializing context for the cache key
  [Validator] Add missing Ukrainian and Russian translations
  No need to reconnect the bags to the session
  Support for Content Security Policy style-src-elem and script-src-elem in WebProfiler
  [PropertyInfo][ReflectionExtractor] Check the array mutator prefixes last when the property is singular

* 3.4:
  [HttpFoundation] workaround PHP bug in the session module