Check FQN
Invalidate can return migrate result
Merge pull request #6757 from lucasmichot/5.0-session-store-return-migrate

[5.0] Invalidate Should Return Migrate Result
Merge pull request #6755 from lucasmichot/5.0-fqn

[5.0] Check FQN
Remove useless (array) cast
Disable $use_include_path for file_get_content