symfony/symfony — pull request #12953 by sjagr (2014-12-11 21:09:29+00:00)
Title: Fully revert "[DependencyInjection] backport perf optim"

| Q | A
| ------------- | ---
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | #12952
| License | MIT
| Doc PR |