feature #28218 Improve support for anonymous classes (nicolas-grekas)
feature #28218 Improve support for anonymous classes (nicolas-grekas)

This PR was merged into the 4.2-dev branch.

Discussion
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Improve support for anonymous classes

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

Before:
![image](https://user-images.githubusercontent.com/243674/44276933-5c522600-a249-11e8-8bcc-6d55c9fa5a5e.png)

After:
![image](https://user-images.githubusercontent.com/243674/44276912-4cd2dd00-a249-11e8-943f-b6b0d0eb8908.png)

Same in other places, e.g. Console failures.

Commits
-------

e41ced2bfd Improve support for anonymous classes

symfony/http-kernel,symfony/HttpKernel