[FrameworkBundle] removed HttpFoundation classes from HttpKernel cache
merged branch bamarni/patch-4 (PR #8141)

This PR was merged into the 2.3 branch.

Discussion
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[2.3][FrameworkBundle] removed HttpFoundation classes from HttpKernel cache

| Q             | A
| ------------- | ---
| Bug fix?      | [yes]
| New feature?  | [no]
| BC breaks?    | [no]
| Deprecations? | [no]
| Tests pass?   | [yes]
| Fixed tickets | [#8126]
| License       | MIT

Since #7322, class redeclaration errors will occur in non-debug mode when using HttpCache, because the map isn't adaptative, and HttpCache might need HttpFoundation classes even before booting the Kernel. I suggest moving them to the bootstrap instead.

Commits
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c8e5503 [FrameworkBundle] removed HttpFoundation classes from HttpKernel cache