facebook/hhvm — pull request #3080 by whatthejeff (2014-07-01 21:24:15+00:00)
Title: Improved Zend compatibility for the image extension.

* Added ICO support to `getimagesize()`. This fixes #2985.
* Added BITMAPV5HEADER support to `getimagesize()`.
* Removed superfluous warning in `getimagesize()`.
* Fixed handling of `imageinfo` argument in `getimagesize()`.
* Fixed the bmp mimetype.
* Added missing test fixtures.