Integrate check to the install tool and reports module concerning eAccelerator
There are some parts in the TYPO3 Core that require annotation parsing, e.g. Extbase and the unit tests. These parts grab the PHPdoc comments and search for annotations like "@test".
However, since eAccelerator can be compiled to strip all comments away, this would produce strange behaviours. Thus it's recommended to compile eAccelerator with this configuration:
See also first section concerning Extbase in the 4.3-alpha3 release notes:
(issue imported from #M12347)