[Filesystem] Fix regression introduced in 10dea948
[Process] Cleanup tests & prevent assertion that kills randomly Travis-CI
merged branch stloyd/bugfix/fix_regression (PR #7944)

This PR was merged into the 2.1 branch.

Discussion
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[Filesystem] Fix regression introduced in 10dea94

This is one of ideas to fix the regression from 10dea948, @kachkaev what do you think?

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature? | no
| Tests pass?  | yes
| Fixed tickets | #7920
| License       | MIT

Commits
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e4913f8 [Filesystem] Fix regression introduced in 10dea948
merged branch stloyd/bugfix/process_tests (PR #7947)

This PR was merged into the 2.1 branch.

Discussion
----------

[Process] Cleanup tests & prevent assertion that kills randomly Travis-CI

Commits
-------

05b987f [Process] Cleanup tests & prevent assertion that kills randomly Travis-CI
fixed CS
updated CHANGELOG for 2.1.10
update CONTRIBUTORS for 2.1.10
updated VERSION for 2.1.10
bumped Symfony version to 2.1.11-DEV
Merge branch '2.1' into 2.2

* 2.1:
  bumped Symfony version to 2.1.11-DEV
  updated VERSION for 2.1.10
  update CONTRIBUTORS for 2.1.10
  updated CHANGELOG for 2.1.10
  fixed CS
  [Process] Cleanup tests & prevent assertion that kills randomly Travis-CI
  [Filesystem] Fix regression introduced in 10dea948

Conflicts:
	src/Symfony/Component/Form/Extension/Core/DataTransformer/DataTransformerChain.php
	src/Symfony/Component/HttpKernel/Kernel.php
	src/Symfony/Component/HttpKernel/Profiler/RedisProfilerStorage.php
	src/Symfony/Component/Routing/Tests/Loader/XmlFileLoaderTest.php