symfony/symfony — pull request #12985 by Koc (2014-12-15 12:02:50+00:00)
Title: [HttpFoundation] Fix return phpdoc

| Q | A
| ------------- | ---
| Bug fix? | tiny (for IDE autocompletion)
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | -
| License | MIT
| Doc PR | -

What about using `self` or `static` keyword for this?