[PropertyAccess] Allowed non alphanumeric chars in object properties
feature #9843 [PropertyAccess] Allowed non alphanumeric chars in object properties (florianv)

This PR was merged into the 2.5-dev branch.

Discussion
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[PropertyAccess] Allowed non alphanumeric chars in object properties

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | https://github.com/symfony/symfony/issues/8930
| License       | MIT
| Doc PR        |

Commits
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20d4eb6 [PropertyAccess] Allowed non alphanumeric chars in object properties