symfony/symfony — pull request #12256 by nicolas-grekas (2014-10-19 16:15:12+00:00)
Title: [VarDumper] add meta-data on hover

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

This PR adds meta-data on hover to HTML dumps:
- strings length
- constants value
- control chars code
- local refs count