symfony/symfony — pull request #6051 by Tobion (2012-11-18 20:31:04+00:00)
Title: [DI] removed unneeded is_object() calls

I searched through all of symfony for occurences of the coding style `(is_object($value) && $value instanceof Object)` with a regex like `is_object\(\$[a-zA-z0-9]+\) && \$[a-zA-z0-9]+ instanceof `.
The `is_object` calls are not needed in this case. Only the DI component made such duplicate checks.